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This week in birds - #654

 A roundup of the week's news of birds and the environment:


This is the Rough-legged Hawk, a bird that breeds in the Arctic and subarctic regions of the world and migrates south during the winter months.  During nonbreeding months, the birds migrate to a wide swath of the mid-section of North America. Some even get as far south as north and west Texas and northern Mexico. It's unlikely that the migrating hawks would get as far south as southeast Texas so I won't be expecting to see one in my backyard! This magnificent bird is the American Bird Conservancy's Bird of the Week.

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It seems that we humans are having an effect on animal evolution.

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U.S. rivers are heating up in an unprecedented way.

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At least fifteen of the world's important archaeological sites are being threatened by the effects of climate change.

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And speaking of archaeological sites, archaeologists have uncovered the treasure-filled tomb of the first known ruler of the Maya city of Caracol in Belize.

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A trio of leopard sharks has been observed mating in the wild for the first time and a snorkeling scientist was able to catch the event on video.

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It's not only humans that have to dodge New York traffic; whales that swim offshore also have to dodge the many ships and boats in the area.

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The Chicago River was once a filthy mess but after a massive clean-up people are now swimming in it once again.

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Researchers counted the growth rings of the Sycamore Gap tree that two men illegally chopped down and they learned that it was 100 to 120 years old.

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The bird in the middle is the first known hybrid offspring of a mating between a male Blue Jay and female Green Jay. The mating occurred in the San Antonio area of Texas where the ranges of the two species overlap.

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It appears that our planet has a "quasi-moon," a celestial body that shares our orbit around the sun.

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The Marbled Murrelet nests in old-growth trees and those are getting harder to find. That is a problem for the continued existence of this tiny seabird. 

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Eco-grazing is becoming a popular way to clear out unwanted overgrowth and that's where the goats come in.

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A jaguar in Brazil has set a new record for the longest known swim by the species.

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You do not want to be outside during a lightning storm. Just this week, two elk hunters in Colorado were struck and killed.

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Orcas normally swim in groups but it seems there is one in the North Atlantic that prefers to swim alone.

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Could beavers be allies in helping to fight forest fires?

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Chimpanzees, it turns out, love fermented fruit and they may consume as much as the equivalent of 2.5 alcoholic drinks a day by eating it.



Comments

  1. Adaptations being made by so many creatures because of man's influence strangely gives some comfort, but the rapid heating of rivers is a great cause for concern. Aren't chimpanzees thought to be man's closest relative, or is it the bonobo? Anyway, chimpanzees consuming fermented fruit bear a close resemblance to man enjoying a pint after work, though they must be drinking more than the recommended 14 units per week.

    ReplyDelete
    Replies
    1. Obviously humans, chimps, bonobos all share a lot of traits - including a liking for fermented fruit and its juices, apparently.

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  2. I wonder if the offspring of the Blue Jay and the Green Jay is fertile. I'm fascinated by this story, and I wonder if it is possible that other cases like this are happening.

    I have been thinking about cats and dogs and how they are evolving to be more human-like as more and more of them live closely with people. Thank you for sharing these articles with us, Dorothy.

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    Replies
    1. Hybrids often are not fertile, of course, but the Blue and Green Jays are so closely related that it seems to me it would be possible. Perhaps we'll find out. And I would suspect that this might be happening with other species. Again, perhaps we'll find out.

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  3. Thanks for the roundup, Dorothy. Sorry to be a little late with my comment this week, but I led a full day outing yesterday and was out of the house before 7:00 am and did not return until after 6:00 pm. We made a pasta dinner, quick and delicious, and relaxed with a glass of wine. Now it’s time to delve into the stories you connect us to. I would have enjoyed seeing that hybrid jay. As you say, the young might even be fertile. You’ll have to keep your eye open for others! Enjoy what’s left of the weekend. Best wishes - David

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    Replies
    1. I did miss you yesterday, but it sounds like you had a productive day.

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  4. I meant to mention, too, that Rough-legged Hawk is a fairly common winter resident here.

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