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More than 150 bird species are known to have become extinct over the past 500 years, and many more are estimated to have been driven to extinction before they became known to science. The Gray Crowned-Crane is a new addition to the list of the world’s Endangered species, creeping up a category from Vulnerable.
There is a fantastic paper just out in Science : “Sustained miniaturization and anatomoical innovation in the dinosaurian anceestors of birds” by Michael Lee, Andrea Cau, Darren Naishe and Gareth Dyke. The paper that just came out in science has the following spectacular conclusion. Until turkey size or so. And smaller.
For one thing, we become more aware of cultural biases in our science (new findings on warbling female birds, for example, reveal both gender and geographic biases). Many popular science books have neither. As Ackerman explains in her Introduction, studying extreme behavior brings new insight into what we think we know.
These all had their own sub population of one or more species of large land bird, and these populations, in turn, give us the large lane birds we have today, except on Madagascar where the Elephant Bird went extinct (recently). It is notable that the basal Ratite, the South American Tinamous, flies.
The feature distinguishes birds from other species; All birds have them, no other species do. Beaks vary across different kinds of birds, and this great diversity in beaks is part of the great diversity of the 10,000+ species of birds that exist today; Beaks thus facilitated the diversification of birds. So how did beaks evolve?
The magnificent history and diversity of birds on Earth came into sharper focus this month with the publication of 28 new scientific papers in Science and other journals. processed the entire genomes of 48 bird species and compared nearly 42 million base pairs of DNA (Hackett et al. American Flamingo photo by Dick Culbert).
Before the counts, I was hoping to break 100 species, but after 21 parks reported data back to me we’re up to 183 species! found 36 species, including Killdeer (in December!), Kestrel , Northern Harrier , Great Blue Heron , and Wild Turkey. The Battle at Antietam was the single bloodiest battle in American history.
Sometimes they show up in February if we get hints of an early spring, along with Turkey Vultures, Killdeer, Red-winged Blackbirds, and a few other eager and opportunistic early migrants. And yes, three of those eight species are Rock Pigeon, European Starling, and House Sparrow.).
The days for me to add to my Little Big Years species count are getting fewer and fewer, and with it, my budget. Most of the day was a repeat of the previous island s birds, but I did add some Brown Creepers, Oregon Juncos, Robins, Swainson’s Thrush , and some Turkey Vultures. Little Big Year species count: 834.
Gary Steiner perfectly articulates my feelings, and particularly my frustration, as so many around me obsess about the preparation of their turkeys. Professor Steiner is entitled to his beliefs and his tofurkey; most of the rest of us will enjoy our turkey without guilt (but with vegetable stuffing). Alexander Mauskop New York, Nov.
Pickrell, an Australian science writer who grew up in Great Britain and studied for his master’s degree at London’s Natural History Museum, is clearly engaged with his subject. Things got more complicated when evidence was found that even the larger dinosaur species, such as tyrannosaurs, probably had feathers.
Nesting is now confined to Morocco, irregularly in Boghari in Algeria and in Birecik, Turkey.” (The Sadly, they no longer breed in Algeria, while in Turkey no free-flying birds remain. (In But this range is now much reduced. There’s no information as to when these European colonies died out, but we do know that it was a long time ago.
The book has 25 chapters, each one treating a different species of bird. There’s a lot of science in the book, but there’s also magic. I had already known for a long time that the turkey vulture was my totem bird. The big new book. Two and a half pounds of book. Most are common birds that many of us see every day.
Whatever it was, Corey was found at his keyboard 2 hours later, covered in blood and snot and sporting a cut lip, having announced that he and Mike would rescue the failing list by taking personal responsibility for adding 300 species. Mark Hatfield Marine Science Center and Estuary Trail. Turkey Vulture – Cathartes aura.
They found 673 species and advanced the yearly total to 1019. Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail. Wild Turkey – Meleagris gallopavo. Mark Hatfield Marine Science Center and Estuary Trail. Turkey Vulture – Cathartes aura.
They submitted 144 checklists, noting 628 species adding 72 to the year’s running total bringing it to 1890. Wild Turkey – Meleagris gallopavo. Ocellated Turkey – Meleagris ocellata. Turkey Vulture – Cathartes aura. Mark Hatfield Marine Science Center and Estuary Trail. 18 Aug 2017.
During October, 7 countries (Costa Rica, Australia, USA, India, Hong Kong, UK, Serbia) were birded by 11 beats who shared 135 checklists and noted 697 species. Wild Turkey – Meleagris gallopavo. Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail. 26 Jan 2018.
They noted 598 species as a team, bringing the year total to 2118 and pushing the life list to 3555. Wild Turkey – Meleagris gallopavo. Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail.
Their 185 checklists contained 951 species during April! Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail. Wild Turkey – Meleagris gallopavo. Mark Hatfield Marine Science Center and Estuary Trail. Turkey Vulture – Cathartes aura.
During March, 11 beats shared 122 checklists to accumulate 680 species from 8 countries; USA, Costa Rica, Serbia, India, Australia, New Zealand, UK and Japan. Wild Turkey – Meleagris gallopavo. Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail. 26 Jan 2018.
10 countries were birded by 9 beats and 892 species were noted from 144 checklists. Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail. Wild Turkey – Meleagris gallopavo. Mark Hatfield Marine Science Center and Estuary Trail. Does Mel Gibson know?
In reverse order, the medals were awarded for “most species seen in a country”, to Australia with 420, USA got the silver, scoring 556 while the runaway winner was Costa Rica with 646 species. Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail.
8 beats shared 126 checklists accounting for 704 species. Mark Hatfield Marine Science Center and Estuary Trail. Mark Hatfield Marine Science Center and Estuary Trail. Wild Turkey – Meleagris gallopavo. Mark Hatfield Marine Science Center and Estuary Trail. Harlequin Duck – Histrionicus histrionicus.
To my disappointment the biggest and most visible species I saw was the introduced Common (Ring-necked) Pheasant , and my first lifer was the equally introduced Gray Partridge. And a more determined birder could have come away with far more, especially earlier in the spring: the park’s checklist numbers over 200 species.
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