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Nov 15 2016

In The News – Week of November 13th

Author: DakotaBirder • Discussion: No Comments

A return to normality, at least as much normality as I can summon up in a post-apocalyptic, Orange-Hitler-as-President kind of world.  Some news stories of interest from over the past week:

Deer Mouse

A Deer Mouse…cute little suckers, but not when they try to enter your home! New research reveals they have the same genes that control speech in humans, so perhaps when one tries to get into the house, he’s just looking for a little camaraderie and conversation.

Other animals have genes for speech — I, of course, love birds.  I love attracting birds to my yard, with a small feeder complex outside of our sun room, and trees and bushes to attract birds.  Unfortunately, the feeders also attract other critters.  Some…Thirteen-lined Ground Squirrels…are cute and I don’t mind.  Others…Deer Mice…are not wanted guests, particularly if they try to occasionally get into your home!  We’ve taken measures to get rid of them, but after reading this study, perhaps I overlooked one method…a simple conversation!  According to this research, many mammal species have been found to have the same kind of genes that regulate speech in humans.  This includes mice, the focus of this study.  Next time a wayward Deer Mouse decides he wants to investigate our house, perhaps a stern discussion will be all that’s needed to convince him to head back outside where he belongs.

Scientists react to election — From Nature, a summary of opinions from a number of scientists on what Trump’s election means for science in the U.S.  Some pretty high-minded statements about what Trump should consider as the government science agenda likely becomes realigned.  To the ten or so scientists offering their opinions and advice?  You’re giving the Trump administration FAR too much credit if you think there’s this much thought that’s going to be placed into their science agenda.  Look for far simpler motives (corporate profit, political motivations) than what these experts have outlined.

2016 set to break climate records — 2015 was the hottest year on record.  2016 is almost certainly going to break that record.  Perhaps this is why climate change doesn’t get anywhere close to the amount of attention it should be getting?  Is it pure boredom?  The same old same old story?  Indeed, at this stage you can take the title of this paragraph, leave the “2016” blank, and just fill in the current year from her on out, and there’s a good chance you’ll be correct.  Despite the lack of “novelty” in stories like this, perhaps the media should focus on how frighteningly commonplace such headlines have now become and what that means for our future.

Beer Pong

Science, used to explain the sanitary filth that occurs when playing beer pong.

Beer Pong Bacteria — I wasn’t ever a huge drinker in college. Perhaps I was just being smart.  In what has to rank as one of the most “fun” science experiments ever, scientists studied what happens from a sanitary standpoint when people play beer pong. It’s not pretty!  As you can imagine, if you bounce a ping-pong ball on a table, it hits the floor on occasion, it’s bouncing from cup to cup after people have been drinking from them…the biodiversity that starts to build up in the cups gets to be a little disgusting.  Perhaps that morning-after feeling isn’t all just from the alcohol…

Zika, Dengue, and Chikungunya all in one bite — Our vacation in 2015 was to the U.S. Virgin Islands. We’d never been in the Caribbean, and had a lovely cottage that we rented, with our own private beach and ocean access.  It was wonderful, and we really enjoyed the privacy, the snorkeling, and the beautiful weather.  One thing that was NOT enjoyed…the mosquitoes.  OH MY GOD, the mosquitoes.  Upon arriving, the Virgin Islands were in a very bad drought, to the point they were shipping in fresh water.  We were told that because of the drought, mosquito populations were very low.  Somebody forgot to tell the mosquitoes that!  I’ve never had so many mosquito bites in my life. In one way we were fortunate…”Chikungunya” disease had swept through the Caribbean the previous year, a new mosquito-borne virus that infected a very high percent of inhabitants across the region. It had largely burned itself out by our vacation, and despite the dozens of bites, none of us were ill.  As this story notes, scientists have now found that mosquitoes in North America have the ability to carry THREE tropical viruses…Zika, Dengue Fever, and Chikungunya.  For you lucky folks in the southern U.S., central America, or the Caribbean, you could strike the lottery and get sick from all three illnesses, all from a single mosquito bite.

The Onion

Facebook and Google are joining forces to reduce the influence of “fake” news online. I just hope they implement the new rules judiciously, and recognize the brilliant satire of The Onion! We NEED this kind of humor right now!

Facebook and Google cutting revenue to “fake” news sites — For anyone on Facebook, it can be rather annoying to see sensationalist “news” stories, often which include propaganda and other material that is anything BUT “news”.  During the campaign and after the election, stories were coming out that revealed a shockingly high proportion of the American Public relies on social media as their primary news source.  Given the preponderance of fake news (aka, “bullshit”) on Facebook, this week both Google and Facebook have cracked down on fake news sites, greatly reducing advertising revenue to sites that attempt to titillate or serve as click-bait for fake news.  Fake news didn’t decide the election (no, I’ll blame an ignorant, hateful electorate), but this is a nice move on the part of both Facebook and Google.  Both entities have such a massive influence over the distribution of information…it’s good to see them recognize the harm that can come from misleading information.

Skim Scum Stops Sickness — Is it possible we are just TOO focused on cleanliness, and that it is making us sick? Our skin is home to a bacteria-filled mini-ecosystem, one that we simply do not understand very well.  This research highlights the beneficial role one kind of bacteria plays in protecting the skin from diseases such as psoriasis, dermatitis, or even skin cancer.  With allergies and other select other diseases exploding over the last several decades, scientists are finding several similar situations, where our very cleanliness and focus on sanitation may have a negative impact on immune response and the progression of disease.

Eastern Fox Squirrel

Cute? Cuddly? How about EVIL SLAYER OF HUMANITY!?!?! Scientists have unexpectedly found that squirrels in Great Britain are serving as a host population for the same strains of leprosy that devastated Europe in the Middle Ages.

Gun Control Laws Work, Says Science — Americans seem hell-bent on ignoring fact and logic, despite the best efforts of scientists and other “truth-based” occupations.  While I’m sure this will be ignored by the vast majority of gun-loving, weapon-toting Americans, here’s yet another study that shows how incredibly effective gun control laws are at preventing violent crime. Americans, this is now your cue to 1) start screaming about the 2nd amendment, 2) start screaming at the people behind this study as liberal nincompoop, and 3) go out and purchase more guns and ammo for your in-home arsenal.

Leper Squirrels Invading Great Britain!! — There’s nothing to immediately panic about, my British friends.  Not yet, anyway.  But alas…those cute, cuddly Red Squirrels running around your yard could very well be infected with the same leprosy bacteria that caused such misery for humans in past centuries.  Leprosy dramatically declined in Europe after the Middle Ages, and is almost completely absent in today’s world.  However, scientists unexpectedly found that two different strains of leprosy bacteria have been found in Red Squirrels, strains that are remarkably similar to centuries-old versions that caused disease in humans.  Scientists are now working to understand how the bacteria has survived for so long in another host, and whether squirrels or other mammals may serve as a reservoir of the bacteria that could someday re-emerge and start infecting human beings again.

 

Jun 18 2015

Hummingbirds in the U.S. Virgin Islands!

Author: DakotaBirder • Discussion: 5 Comments
Green-throated Carib - Eulampis holosericeus

A Green-throated Carib, hanging out on their favorite tree with the pink tubular flowers. As always, click for a larger view.

I have quite a few bird (and other) photos from our trip to the U.S. Virgin Islands, and am just starting to go through and process them.  From a birding standpoint, it was certainly a blast to see a number of new species!  However, as a rule, the smaller the island, the fewer the number of species are found, and St. John’s isn’t a very big island.  Over 430 bird species have been found in South Dakota, quite a few for a location over 1,000 miles from the nearest ocean.  St. John’s, on the other hand, hasn’t had many more than 150 species.

While the number of “new” species for me wasn’t high, there were certainly some very cool birds that you’re not going to find in South Dakota!  A highlight for me as a birder is finding and photographing new hummingbird species (one reason why I love Arizona so much!).  While other species have visited one or more of the islands on rare occasions, but the U.S. Virgin Islands only have two regular hummingbird species, the Green-throated Carib and the Antillean Crested Hummingbird.  I’ve never been in the Caribbean, and neither is found in the United States, so both were new for me!

The U.S. Virgin Islands are experiencing quite the drought right now, and one thing that shocked me upon arriving was just how dry and brown much of St. John’s was.  Most of the island is a dry scrubland forest anyway, but from what the locals told us, it was quite unusual to see things as dry as they were on our visit.  Despite the drought, however, there were a few species of trees and plants that were blooming profusely, including on the property of the beach house.  It didn’t take long to see both species.  We arrived on a Sunday afternoon, and within an hour of arriving at our beach house, I had seen both species.

An Antillean Crested Hummingbird, one of the few relatively clean shots I was able to get of the species. Despite seeing them at close range multiple times, they were much more difficult to photograph, as they seemed more active and more likely to perch in heavy cover than the Green-throated Cariibs.

An Antillean Crested Hummingbird, one of the few relatively clean shots I was able to get of the species. Despite seeing them at close range multiple times, they were much more difficult to photograph, as they seemed more active and more likely to perch in heavy cover than the Green-throated Cariibs.

I don’t know the name of the tree, but there were a number of large trees with tubular pink blossoms that both hummingbirds seemed to really love.  The first hummingbird I saw and photographed was a Green-throated Carib feeding on nectar from blossoms in this tree.  In sunny St. John’s, it’s hard to miss the brilliant flash of green when you see a Green-throated Carib!  They’re also a relatively large hummingbird species, making them even more noticeable.  Unlikely pretty much every hummingbird species I’ve seen in the United States, they also have a very strongly decurved bill that’s quite noticeable.  I also came across a few other Green-throated Caribs on other locations on the island, but every time I saw one, it was hanging around one of these pink-blossomed trees.

Green-throated Carib - Eulampis holosericeus

Another Green-throated Carib, this one hovering right before heading to a pink bloom to feed.

The Antillean Crested Hummingbird is the more highly sought species from what I was told by birders familiar with the area.  They’re not hard to find on St. John’s, but they do have a pretty small range overall in the Caribbean, making them a nice addition to a birder’s checklist.  The Antillean Crested Hummingbird is quite small hummingbird, very noticeably smaller than the Green-throated Carib.  Perhaps it’s because of the size difference, but there were obvious behavioral differences between the two species.  While the Green-throated Caribs around the beach house were seemingly quite aggressive, attempting to chase away Bananaquits, Lesser Antillean Bullfinches, and other birds using their favorite flowering trees, the Antillean Crested Hummingbirds seemed to stay closer to the ground in more hidden locations.  They too really liked the pink-flowered tree, but would only use it if the Green-throated Caribs weren’t using it at the time.  They also seemed to stay closer to the ground, visiting blooms lower in the tree canopy and generally staying closer to thicker cover.  There were a number of times when I would walk around the pink-flowering trees and I would see an Antillean Crested Hummingbird perched in a thicket nearby.  They tended to stay there most of the time, flying out on occasion to feed, but immediately returning to thicker cover once they were done feeding.

That first day I was just THRILLED to see both species at very close range, and didn’t even try to photograph them.  At one point, while standing next to another tree with gorgeous orange flowers, an Antillean Crested Hummingbird began feeding on blooms a mere 3 feet away!  It was such a thrill to watch this gorgeous male Antillean Crested Hummingbird at such an extremely close range.  Given how easy they were to see that first day and how close they would feed to my position, I was quite excited for the rest of the week, anticipating many good photo opportunities!  However, as it often works with bird photography, things didn’t exactly work out as planned!  I continued to see both species throughout the week, but frustratingly, I couldn’t get nearly as close as I did that first day!  I’m not complaining much however, as I continued to get great looks through my binoculars, and did manage to get enough decent photos of both species to keep me satisfied.

Green-throated Carib - Eulampis holosericeus

And one more Green-throated Carib and the favored tree. Gives you a better look at the tree…anybody that can tell me what those trees are?

One aspect of the trip that did NOT work out as planned…I had brought along a small hummingbird feeder in my bags, anticipating setting it up and enjoying close range action not only from the hummingbirds, but from Bananaquits and other species that feed on nectar on the islands.  I set up the hummingbird feeder near one of the pink-flowering trees that first day, and waited for the heavy hummingbird action!  I waited…and waited…and waited…and not ONCE did I see a hummingbird even approach the feeder, much less start feeding on the sugar water I had put within it.  Very strange, given that both species are known to visit feeders. The Bananaquits (an ever present species on the island!) also showed no interest.  The only species that visited the hummingbird feeder? Interestingly, it was “Swabby and Captain”, the pair of Pearly-eyed Thrashers I had discussed in a previous post.

A real treat seeing both hummingbird species at close range and getting some decent photos!  I’ll post more photos of other species from the trip as I get them processed.

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