Gleanings of the Week Ending September 7, 2019

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

BBC - Future - Is city life really bad for you? – Some additional reasons we need to make changes to cities --- if that is where the bulk of humans will live in the future.

A Field Guide to Commonly Misidentified Mammals – Cool Green Science – How many of these animals can you correctly identify?

Blood vessels turning into bone-like particles -- ScienceDaily – The headline caught my interest…bone-like particles in the blood. Then I noticed that the researcher was from the school where I did my undergraduate work back in the 1970s!

Top 25 Wild Bird Photographs of the Week: Raptors and Migration – Catching up on these weekly posts from National Geographic. I always enjoy them.

BBC - Future - Can you cool a house without air conditioning? – We’ve probably had our last 90 degree plus day for the season at this point….but over the long term, I expect broadening the technologies we use to cool our homes and buildings is going to be important.

Turquoise-Tinted Tarantula Discovered in Sri Lanka | Smart News | Smithsonian – Iridescent color that must startle the spider’s prey (or a predator) --- and a discussion of collecting by scientists.

See a different endangered animal in every U.S. state – The map is easy to explore. The Puritan Tiger Beetle was the one listed for Maryland….not something I had heard of before.

Infographic: How Muscles Age | The Scientist Magazine® - A little muscle anatomy lesson – for young and old.

The Earth's Vegetation Stopped Expanding 20 Years Ago - News | Planetizen – Another indication that climate change is already having a worldwide impact?

Forest-killing bark beetles also might help ecosystem, experts say - UPI.com – It’s distressing to see a forest of dead trees…but maybe it’s an indicator that monoculture forests and fire suppression are not healthy. And then there is climate change in the mix as well. The beetles now survive the winter temperatures in much of their range.

Polyphemus Moth - Macro

I posted about the battered Polyphemus moth shortly after I found it. This past weekend, I spent some time photographing the moth at closer range than I could when it was alive. The hindwing is almost behind the forewing now. It’s easier to see the antennae are somewhat feather-like but not as big as a male’s antennae would be.

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Turned over – some of the legs have already broken off. The abdomen is drying. It may be that the moth laid all the eggs she had before her death.

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A close-up of the thorax and abdomen reveals scales that look a lot like hair.

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The same is true of the wing.

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I put the clip-on magnifying lens on my cell phone. The magnification shows scales although they appear to be much narrower that butterfly scales and don’t lay as flat.

I noticed that even though I was trying to be gentle – the antennae had broken off.

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With additional magnification, the antennae seem to have joints. They may look somewhat like feathers but not when viewed closely. These are sensory organs.

Since the specimen was battered and had already lost some lower leg parts…and antennae – I decided to take a closer look at a hindwing separately. The wing was already brittle and breaking almost every time I touched it.

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I decided to use a jeweler’s loupe rather than the clip.

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The ‘eye’ structures on the wing are clear in the center (the green paper underneath the wing shows through). The scales still look hair-like much of the time…not as fitted together as the scales of a butterfly.

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I found some pictures of Polyphemus moth scales from a microscopy magazine that look similar at the same magnification I was used…and then includes a more magnified view (figures 4 and 5).

Gleanings of the Week Ending August 31, 2019

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Top 25 Wild Bird Photographs of the Week: August and Sunbirds and Spiderhunters -  Two sets of bird pictures this week…catching up a little on the gleanings…and good picutres to start out the post this week.

Rare Lightning Strikes Detected 300 Miles from North Pole | Smart News | Smithsonian – I’d never thought about lightning or thunderstorms over the arctic….so this was ‘news to me’ from several perspectives.

Impact of largescale tree death on carbon storage -- ScienceDaily – In our area, invasive insects have caused the deaths of two tree species in recent years: Eastern Hemlock (wooly adelgid) and Ash (Emerald Ash Borer)…die-offs that are definitely not the norm. I wondered if the research included these in their ‘insect outbreak’ category.

The practical ways to reduce your carbon footprint (that actually work) | WIRED UK – How many of these have you considered…implemented?

Here's How the 'Fish Tube' Works | Smart News | Smithsonian – And it doesn’t injure the fish? It seems like it would be very traumatic for the fish.

Tracing the History of Decorative Art, a Genre Where "Form Meets Function" – Short…with some good pictures…and links.

Microplastic drifting down with the snow: In the Alps and the Arctic, experts confirm the presence of plastic in snow -- ScienceDaily – Aargh! Something we have in our minds as being ‘clean’ because it is white, is polluted by things so tiny we can’t see them.

Insect 'apocalypse' in U.S. driven by 50x increase in toxic pesticides – Why are we still using such huge amounts of pesticides when we don’t need to….we have methods to grow our food without decimating pollinators and other beneficial insects.

BBC - Future - The wildlife haven in a Cold War ‘death strip’ – The land between what used to be East and West Germany…the borderland between Finland and Russia….places where the Iron Curtain divided people. This is a long corridor of land left alone for the decades of rapid growth in Europe – land where people didn’t tread but where plants and animals could thrive. It is the European Green Belt through 24 countries. Some species are already using it to migrate north to escape the effects of global warming.

What drives inflammation in type 2 diabetes? Not glucose, says new research -- ScienceDaily – A surprise finding….and now a lot more research needed about fat derivatives and mitochondria in people with type 2 diabetes.

Zooming – August 2019

There are 10 images in this month’s ‘zooming’ post – a selection from places I’ve been over the month: Brookside Gardens, Patuxent Research Refuge, and Mt. Pleasant Farm. I used the zoom a lot on my camera, so I always have a lot to choose from…and the collection almost always is dominated by plants. This month is no exception although there are a few insects (butterflies and a cicada) and a frog.

There is one type of plant that is featured twice. Can you find it in the slideshow?  The answer is below the slideshow.

The hibiscus is the plant featured twice: the red flower and the three green buds!

3 Free eBooks – August 2019

My picks of ebooks freely available online for August were a bit of a challenge; I was a little surprised at the variety that ended up as the top three – fashion history from the 1920s, drawings of junks (also from the 1920s, and Vermont Life Magazine from the 1950s onward (still haven’t looked at all of them up to 2018).

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Barbier, George. Le bon ton d'après-guerre. Paris: Dorbon-Aine. 1922. Two volumes available from Internet Archive (one and two).

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Donnelly, Ivon A. Chinese Junks: a book of drawings in black and white. ShanhaiL Kelly and Walsh. 1920. Available from Internet Archive here.

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Vermont Department of Tourism and Marketing. Vermont Life. Montpelier: Vermont Development Commission. A quarterly publication available from Internet Archive here.

Battered Moth

Earlier this week when I was heading out to a volunteer shift at Brookside Gardens’ Wings of Fancy exhibit, I noticed something moving at the base of the red oak tree near our mailbox. I got out of my car to see what it was. There was a large moth flapping around on the ground among the remnants of day lily plants. I took several pictures with my phone and continued to Brookside.

When I got there, the staff helped me identify what I’d seen: a Polyphemus moth (read about the species at Maryland Biodiversity Project and Wikipedia). It’s a female because it doesn’t have the feather-looking antennae. It looked very battered and it died sometime after I left. I collected it when I got home and have it in my freezer…trying to decide what to do with it.

The caterpillars require about 60 days to grow enough to make a cocoon to go through the winter…so this is going to be cutting it close for the eggs this female probably laid in our oak tree. Some of the leaves on our oak (a food plant of the caterpillars) are already beginning to turn reddish brown. None of the branches are low enough for me to see any of the caterpillars in action unfortunately. I’ll still be watching the tree hoping to see one as they grow larger.

Ten Little Celebrations – August 2019

August 2019 was busy – but not as overwhelming as July. I savored the recovery time before the busy fall field trip season volunteering and my own travels. It was still easy to find little celebrations this month.

For three weeks of the month, I celebrated two mornings with Howard County Conservancy summer campers. What great experiences for me and (I hope) for the campers. Fossils, water and flight….interesting themes of high interest to the 5-12 years old groups. I could have counted 6 little celebrations but opted to count each week as 1 larger celebration since I had so many other things to celebrate.

Celebrating Coursera course Bugs 101: Insect-Human Interactions from University of Alberta (which I hope to finish by the end of the month). It was wonderful to have time to dig into an online course again.

Montessori teachers in the Wings of Fancy exhibit. A group of Montessori teachers in training came through the exhibit one morning (when it wasn’t too hot) and I celebrated conversations and that the method is still popular. My daughter certainly thrived in that type of pre-school.

Finding lots of botanical print books. Just when I think I am about to run out of online botanical books, I find a lot more…..and celebrate.

Getting a new laptop ordered. My old laptop is almost out of warranty and, even though it has a new battery and seems to be working well, I ordered a new one. I’m very excited about getting it all set up by the end of the month.

Flavorful cantaloupe. The CSA had very sweet cantaloupes this year. I celebrated melons that were as good as my memories of childhood cantaloupe from my grandparents’ farm.

Office rearrangement. I celebrated a new arrangement of my office furniture and general tidiness of my home office…in preparation for a new laptop.

Photographing a living cicada. Usually the cicada’s I photograph are not living – or are too cold to move. I celebrated seeing one fly into a tree and photographing it…while it was singing.

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Brookside Gardens – August 2019

There is a lot to see at Brookside Gardens in August. I try get there early enough before my Wings of Fancy volunteer shifts to look around.

A plant that was new to me and is evidently doing better than usual in the garden this year (according to one of the gardeners I talked to) is Cardoon or artichoke thistle. In early August, most were still just buds.

By the third week of August there were a lot of blooms. It looks like artichoke and is closely related.

I see Goldfinch almost every time I am in the gardens…but only managed one picture!

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The evidence of Bald Cypress Gall Midge is on the trees now. Soon the tips of the branches will die.

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Sometimes the shape of a leaf catches my attention. These are folded along the central rib – sometimes until they get quite large – and then unfolded into a heart shape leaf.

Milkweed bug larvae (many different instars) are common on milkweed this time of year.

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There were a few Dogwood Sawfly larvae on the dogwood plants near the front of the conservatory buildings but not as many as last year (see the post about them here from August 2018). They were treated with BT (found out from one of the gardeners) and only shriveled larvae were on the plants the next time I visited the gardens.

Wings of Fancy – August 2019

Two volunteer shifts at Brookside Gardens’ Wings of Fancy exhibit stand out this month. The first was a shorter shift before the exhibit was open to the general public. It was two hours for photographers. The shift was low key with not as many people in the exhibit and it was cooler because it was early in the morning. The temperature was low enough that many of the butterflies were still roosting rather than flying around.

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It was possible to get close enough for some quick pictures with my cell phone. There were at least two clear wings that were spotted.

Enjoy the slide show! By the end of the 2 hours, the temperature was warming and the morphos were flying. One paid a lot of attention to one of the camera bags.

After my shift I went back into the exhibit and took some pictures with a better camera. My favorite turned out to be a blue morpho that positioned itself perfectly on the ‘do not touch’ sign!

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The second shift was made special by a moth! At the beginning of the shift there was an Atlas Moth on the netting at the top of the conservatory…not a good place for a picture. As the shift went on it got hotter and hotter and the moth glided down to the foliage.  We had some time without visitors in the conservatory and I got a great picture. The clear ‘windows’ on the wings look green because of the green plants behind the moth.

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Gleanings of the Week Ending August 24, 2019

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

‘Off-the-charts’ heat to affect millions in U.S. in coming decades – How will public health be impacted by warming climate? This article summarizes a county-by-county analysis of likely temperature and humidity over the coming decades.

Waist size is a forgotten factor in defining obesity -- ScienceDaily - Waist size is just as important as BMI in defining obesity-related health risks. The study used data from 156,000 women ages 50-79 from 1993-2017 and confirms a similar study published in 2015 based on a much smaller population.

Top 25 Wild Bird Photographs of the Week: Little Brown Jobs (LBJs) – National Geographic Society Newsroom – Not as colorful as usual…but I still enjoyed the pictures. I also like the acronym (LBJs)

Algae living inside fungi: How land plants first evolved -- ScienceDaily – And the study was done with algae and fungi that produce high amounts of oil…could be useful growing together for bioproduction (reduce costs).

Food insecurity common across US higher education campuses -- ScienceDaily - Lack of access to reliable supply of nutritious food may affect student's ability to succeed, researchers say. Is it more a problem now that it used to be….or are we just recognizing it? Universities are scrambling to set up programs to address the issue.

With New Perennial Grain, a Step Forward for Eco-Friendly Agriculture - Yale E360 – How can the ideas for prairie and forest sustainable agriculture be moved into the mainstream faster? It seems like there is still a lot to learn about how to do it on a large scale.

Non-native invasive insects, diseases decreasing carbon stored in US forests -- ScienceDaily – It seems like more of these problems are cropping up….and at a time when we need our forests to retain carbon. In our area, the emerald ash borer has killed all the ash trees in the past 5 years…a noticeable change in our forests.

Focus on Native Bees, Not Honey Bees – Cool Green Science - Lots of beautiful bees out there…pollinating right along with the honey bees. We need to support all the pollinators to build (and sustain) health environments for us all.

Solar Panels on Farmland Have Huge Electricity-Generating Potential - Yale E360 – A vision to think about….agrivoltaics (a new vocabular word for me!).

Arctic permafrost is thawing fast. That affects us all. – I was intrigued by the pictures of landscapes of melting permafrost – collapsing land, methane (enough to burn) bubbling from a thawing pond, crumbling cliffs.

Outdoor Butterflies at Brookside

I always walk around a bit before my volunteer shift in Brookside Gardens’ Wings of Fancy exhibit. It’s been easy to see butterflies out in the garden recently. I’ve been able to identify them via my photographs – comparing to the images in the Maryland Butterflies website.

The most numerous butterflies are the tiger swallowtails. I have already posted about them (here) but I did get a good shot of a dark morph (with strips showing in the bright light).

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There was a Pipevine Swallowtail that shared a flower for a few seconds with a Monarch butterfly. These swallowtails are smaller than the tiger swallowtails.

Among the smaller butterflies, the Pearl Crescent is plentiful

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As are the Silver Spotted Skippers.

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I took a picture of a dark butterfly…maybe a Wild Indigo Sooty Wing.

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In the walk up to the Caterpillar House of the exhibit there is a Pipevine with Pipevine Swallowtail caterpillars. There were so large…I couldn’t resist a picture!

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I saw a clearwing moth last time I was cutting flowers at my CSA but I haven’t seen any at Brookside yet this year….and haven’t gotten any pictures.

Patuxent Research Refuge – Part II

Continuing about our visit to the Patuxent Research Refuge last weekend (map)…

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At the very beginning of the Loop Trail near the visitor center, we saw a blue dasher on a sign! A great way to start the morning at Patuxent.

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After leaving the bird blind on the Loop Trail, we crossed the bridge heading toward the Cash Lake Trail and began to realize that it was getting hotter every minute…the hike was going be a short one. Looking back toward Lake Reddington, I took one landscape picture

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Then zoomed in for waterlily pictures. The bright sunlight made the water look very dark.

There was a thistle blooming nearby….and going to seed.

After photographing the herons, we came back to the Viewing Blind at the end of boardwalk. I noticed something fly into the tree and was lucky enough to zoom in to find it – a cicada! It was probably the highlight of the trek for me.

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On the way back to the car I noticed the milkweed…looking too good to have very many Monarch caterpillars.  There don’t seem to be many Monarch butterflies this year in our area – noticeably fewer than last year. I hope they are more numerous elsewhere.

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Patuxent Research Refuge – Part I

Last weekend, we spent an hour at the south tract of the Patuxent Research Refuge – that’s the area that includes the visitor center (map). We got there early enough that it wasn’t overwhelmingly hot (and before the visitor center was open). We stopped at a recent addition along the Loop Trail: a bird blind with bird feeders: seeds, hummingbird, and suet. They are still working on the area; as time goes by it should become a better and better place to see birds. In just a few minutes, I saw and photographed three different birds in the area: a male Red-winged Blackbird with patches just beginning to show,

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And a juvenile Common Grackle.

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We walked down to the Cash Lake Trail and out onto the pontoon lake crossing part of the trail. There were two Great Blue Herons out on the lake in the shallow water.

Note the water lilies in bloom around the herons. I’ll post about other things (not birds) we saw in our short visit tomorrow.

A Gray Tree Frog

Last weekend, my husband pulled the cover off our gas grill – and discovered a frog on the shelf to the side of the grill. He took some pictures with his phone then turned on the grill thinking the frog would jump away. Instead it backed up and down into the crack between the grill and the shelf. Not good. We did want to cook our dinner – not the frog. I got a card and threaded it up into the crack behind the frog to encourage it to jump away. It jumped back onto the shelf and then away to the deck when I nudged it gently on the rear. (sigh of relief)

I identified the frog as a gray tree frog – noticing the bright yellow patches on its hind legs when it jumped. We probably have a lot of them around in our trees…but not usually on the gas grill.

Gleanings of the Week Ending August 17, 2019

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Well-Preserved Mosaic Floor Found in Roman Egypt - Archaeology Magazine – Lotus patterns!

Nations with strong women's rights likely to have better population health and faster growth-- ScienceDaily – A study analyzed databases which held information on health, human rights, and economic and social rights for 162 countries for the period 2004 to 2010.  The results suggest that gender equality is not just a women’s issue but a development issue.

More Climate Surprises Expected – THE DIRT – “Climate change together with environmental degradation and social and political instability is the threat multiplier.” It seems like more and more climate-linked surprises/disasters are happening every year. When do we reach a tipping point where everyone realizes that we cannot continue the status quo?

Liver transplants could be redundant with discovery of new liver cell -- ScienceDaily – From Kings’ College London. It would be a big step forward if this finding translates into standard treatment for liver failure.

Viking Woman Warrior May Have Been Slavic | Smart News | Smithsonian – Not all ‘Vikings’ were Nordic men…some were Slavic and some were women! It’s good to understand long ago cultures in more depth…particularly when it causes us to rethink our assumptions.

Top 25 Wild Bird Photographs of the Week: Birding – National Geographic Society Newsroom – Variety and beauty of birds…I always enjoy the ‘25’ collections.

How to keep buildings cool without air conditioning – according to an expert in sustainable design – We are going to need all the technology we know (and some new ones) to keep buildings and homes cool as the planet gets warmer.

America's packaged food supply is ultra-processed: Americans are overexposed to products that are high in calories, saturated fat, sugar and salt -- ScienceDaily – Unhealthy ‘food’ --- most of us have an inkling about this but it doesn’t keep us from indulging. The article mentions the Foodswitch app that allows consumers to scan packaged foods to determine their healthfulness; I loaded the app and scanned things in my pantry. The pasta I buy (whole wheat and green) rates a 5 of 5! Soymilk was 4.5. The canned tamales my husband likes are a 3 (salt and fat).

Thamugadi, a Roman outpost in Algeria, was saved by the Sahara – Buried in sand after it was abandoned around AD 700…and rediscovered in the 1700s but not explored. In the 1870s it was again rediscovered. It was excavated by the French from 1881 to 1960 in its entirety. It became a UNESCO World Heritage site in 1982.

100 days, 100 nights: Sensor network reveals telltale patterns in neighborhood air quality: Custom-built sensors deployed for 100 days and nights to track black carbon pollution -- ScienceDaily – A test was done in West Oakland with new technology to monitor air pollution with more specificity over the area and time of day(s) than has been done before now. The technology worked and demonstrated that the finer grain measurements provide deeper understanding of what impacts localized air quality…something we have to understand to make progress in improving city environments.

Monarch Butterfly Portraits

The number of Monarch Butterflies seem to be less this summer than last; it’s very sad. I’ve been taking portraits every time I see them dreading the year when we won’t see any at all.

Sometimes I get a zoomed picture and see the gender quite clearly. Males have a black spot on each hind wing.

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The females don’t have the spots. The thickness of the veins on the wings are another indicator. The males have skinny veins and the females have thicker ones.

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A Serendipity Hike at Mt Pleasant

Last Saturday morning, there was a Serendipity Hike offered at Howard County Conservancy’s Mt Pleasant location. There were quite a few registrations for the free event after the forecast temperature and humidity were lower than recent days in our area. About 50 people came and we had 4 volunteers to lead hikes. My group included people that had not been to Mt Pleasant before.

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My focus turned out to be about landscaping with native plants (like the sweet bay magnolias)

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And cone flowers.

We headed through the Honors Garden to see more flowering plants and around to the stand of Joe Pye Weed (full of tiger swallowtails). Along the way, the green frogs provide a serenade from the pool. I told them that I had seen 3 frogs earlier but that the summer campers had found 7 a few weeks ago. My hiking group saw 5 and one was positioned to easily observe when he made his croak!

From the Joe Pye Weed we hiked around to see Ranger the Barred Owl…then to the meadow, noticing the orchard and Montjoy barn along the way. Down at the stream we noticed the steep slopes that now have vegetation growing on them --- an indicator that the stream restoration upstream has slowed the flow of water from storms. To avoid a steep uphill climb, we crossed the meadow and walked along the stone wall and then back to the nature center. I pointed out the tree with myriad yellow-bellied sapsucker holes.

The hike was a little over an hour…several people came in to get maps of the trails afterward.

Blue Jay at the Birdbath

I was pleased to see a Blue Jay at our bird bath. Back in July, my husband I had found blue jay feathers to the side of our house and we didn’t see or hear them for several weeks. A week or so ago, we started hearing them again and then one came to the birdbath! I liked this picture because it shows the wing feathers so nicely…the blue with white bars on the flight feather, the more down-like feathers covering the top of the wing and the neck.

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This week is at the Howard County Conservancy Camps is about flight and I’m going to bring this picture and the feathers for the campers to look at closely….flight feathers up close. It’s a great supplement to the rest of the activity I have planned.

Gleanings of the Week Ending August 10, 2019

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Top 25 Wild Bird Photographs of the Week: Green – National Geographic Society Newsroom – Starting off the gleanings list with birds this week – green ones.

Indigenous Maize: Who Owns the Rights to Mexico’s ‘Wonder’ Plant? - Yale E360 – The nitrogen fixing maize --- farmed in Mexico – but who will profit if the trait is replicated in corn to feed the rest of the world.

Vast majority of dietary supplements don't improve heart health or put off death, study finds -- ScienceDaily – Massive analysis…277 clinical trials. The supplement industry is large and advertises; how do studies like this counteract that even if the supplement in many cases is having only a placebo effect.

Brothers Use Drone to Reveal Beauty of Ordinary Objects – Art of objects seen from above.

Making HVAC heat exchangers five times better -- ScienceDaily – We’re going to need all the innovation we can muster to get air conditioning more efficient…and power it with renewable energy.

BBC - Future - Do we need to walk 10,000 steps a day? – Hint – 10,000 is not a magic number at all. I’ve had my goal set at 12,000 steps for quite some time. I make it when I am home but am usually challenged when traveling.

Toyota plans to launch its first full EVs, in a deal with China’s BYD - MIT Technology Review – I hope by the time I get ready to replace my Prius Prime there are a lot of EVs to choose from!

What it Means to Design with Nature in 2019 - News | Planetizen – Is this the thinking of all design going forward?

A Fungus Is Now Infecting Humans & Global Warming May Be to Blame | CleanTechnica – Candida auris started showing up in humans in 2009 and it is multiple drug resistant already. New research is indicating that the fungus might have adapted to warmer temperatures until it can now multiply in the human body…which it couldn’t before.

Water Cycle is Speeding Up Over Much of the U.S. – Lots of changes in the time period between 1945 and 2014.The article includes a color-coded map. It will be interesting to see if the trends continue over the next decade

Red-Tailed Hawk

I had a busy June and July…just catching up with some of the things that happened. One was a flurry related to a red-railed hawk in State College, Pennsylvania. We were coming back from dinner the day before the finally packing up and cleaning out of my daughter’s apartment – heading off to Springfield, Missouri.

As we turned into the apartment parking lot a large bird flew low just over the car toward the base of a tree. There was a lot of noise in the underbrush….and the hawk came up empty. The squirrel escaped into a nearby tree and the hawk sat on the ground for almost a minute – seemingly befuddled.

The bird flew up to a light pole and sat long enough for me to get my camera out and take a picture. It still looks a little scruffy (and maybe frustrated) from the encounter!

My daughter had told me about the red-tails she had heard and observed frequently from her apartment window in State College…and I was thrilled to see one in action.