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New studies find that: when birds migrate from the Arctic to SouthAmerica, fragments of mosses, fungi, and other “diaspores” hitch a ride (and a similar phenomenon may have spread acacia trees from Hawaii to an island in the Indian Ocean); caterpillars which feed on many different types of plants are more attractive meals for birds than caterpillars (..)
Doug Futuyma believes in science and in the scientific basis of evolution. How Birds Evolve: What Science Reveals about Their Origin, Lives, and Diversity by Douglas J. Here are good, complex questions about why this diversity exists, how it came about, and what is its function when it comes to species and overall avian survival.
The potpourri covers some interesting bird related science of the last few weeks, and the promise is this: I’ll get to that other stuff soon, I promise! If this was America, we might not be concerned because starlings are an invasive species, at least in North America. ” Crows are smart.
I was looking for a new project to write about on Wikipedia, something unusual, and this species appealed for reasons I can’t quite define. The migration within SouthAmerica of local birds, as opposed to North American visitors, is poorly understood for many birds (as in Africa). It was both mysterious and plain. .
I was happy to read that the wood stork ( Mycteria Americana ), a bird near and dear to me, was down-sited from the status of endangered to threatened species. Fish and Wildlife Service is down-listing the wood stork from endangered to threatened under the Endangered Species Act (ESA). However, birds in the U.S. Photo: U.S.
Guiding aside, Howell is a research associate at the California Academy of Sciences and the author of many books, including Petrels, Albatrosses, and Storm-Petrels of North America (Princeton). We have tended to a liberal (= realistic) direction when recognising species.” Well, this is one interesting claim.
I would never have believed it, but if the science says so who am I to argue otherwise? Despite their predilection for the watery realm, there are some species of grebes that are long-distance migrants. And grebes, more than many bird families, have an exceptionally high percentage of species that are critically endangered.
Hugh Powell is a science editor at the Cornell Lab of Ornithology. Eight days with 20 of the world’s top birding guides looking for some 1,000 species and three dozen endemics. You can see as many hummingbird species as the folks at Magee Marsh are seeing warbler species—during 25 minutes on a Sunday afternoon.
Later the continents broke up into smaller regions such as SouthAmerica, Africa, Asia and such, an a few smaller pieces like Madagascar and New Zealand as well. This was on Gondwana. Verily, when it comes to news stories about evolution, mammals aren’t the only kind of animal that can be milked!
My home country of South Africa can only be described as a birding paradise! Originally considered monotypic, two species are now recognized. Cape (or Rufous) Rockjumper is a true South African endemic and restricted to the southwest Cape. Males of this species are more brightly colored in their non-breeding winter plumage.
Found throughout SouthAmerica in ever-dwindling numbers these extremely beautiful birds – threatened by habitat destruction and collection for the wild bird trade – are often difficult to see and hard to find. That’s right – birds eating clay. Scarlet Macaws.
And, I started daydreaming about encountering something a little different, maybe a Horned Frog, Ceratophrys cornuta, a large, squat green and brown frog of SouthAmerica, with a wide mouth large enough to eat other frogs as well as reptiles. If you don’t live near a science museum, then read this chapter.
Ridgway himself had 23 species, 10 subspecies, and two genera of birds named for him, including Ridgway’s Hawk.) He wrote about birds in North America, Central America, and parts of SouthAmerica, including the Galapagos. Baird, Brewer, Cory, Bicknell, and Worthen all make appearances.
Pough “with illustrations in color of every species” by Don Eckelberry, Doubleday, 1946. The National Audubon Society Birds of North America covers all species seen in mainland United States, Canada and Baja California. The press material says it covers over 800 species, so you know I had to do a count.
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).
Osborn, a passionate field biologist who participates to the core of her being three re-introduction projects aimed at saving three very different, endangered species: Peregrine Falcon, Hawaiian Crow (‘Alala)*, and California Condor. Sophie Osborn’s stories are personal and inspiring, but this is more than a personal memoir.
Erika is a first year graduate student studying Ecosystem Science and Conservation at Duke. The island contains 80,000 breeding Sooty Terns, in addition to 4,500 breeding Brown Noddies and another 100 breeding pairs of the huge Magnificent Frigatebirds, not to mention pelicans, herons, Black Skimmers , other tern species, and so much more.
Diversity of habitat means, of course, great biodiversity, and the Introduction boasts that Bolivia “is the richest landlocked nation on Earth for bird diversity, the sixth richest overall, and the fifth richest in the Americas” (p. That’s pretty amazing–Bolivia has more bird species than India! ″ x 9.5″x
Rice farmers may use pesticides, or other methods to prevent the birds from eating their crops, further hastening the decline of the species. With this latest research in hand, advocacy organizations can work to reduce rice-related threats to Bobolinks wintering in SouthAmerica. Bobolink photo courtesy of R.M.
crossing the Carribean and winding up in SouthAmerica? Unless you are nothing but the lowly diehard lister, for which you should feel much shame and embarrassment for, birders and biologists alike frequently want to understand birds on a deeper level than how to identify the age, sex and species of a certain individual.
Sixteen species that have been recorded in the United States are covered: six Myiarchus flycatchers and ten Kingbird ( Tyrannus ) flycatchers. As with the first volume, I was surprised to see the inclusion of a species that has only been seen in the U.S. Introductory Material Sixteen species, 190 pages.
That’s 18 species in one book. This is more than a collection of species accounts. There are also two pages illustrating the “Holistic Approach,” silhouettes of each species (Western birds on the left, Eastern birds on the right), that allow for comparison of structure, size, and shape.
Where did the Coney Island Gray-hooded Gull come from, Africa or SouthAmerica? I kept wishing I had Rare Birds of North America , by Steve N. In this book, rare birds are species “for which, on average, only 5 or fewer individuals have been found annually in North America since around 1950.” And, not very often.
She lives part-time in Uruguay and is co-director of the Fiction Meets Science program at the University of Bremen, Germany, which seeks to bridge the “two cultures” of science and literature. In the marshes of the estancia , he discovers what he comes to believe is a new species of rail – one of the “accidentals” of the title.
The locations ranged from Toronto, Ontario to Pacific Grove, California with most counts in or near the population centers of northeastern North America. Those original 27 Christmas Bird Counters tallied a total of 90 species on all the counts combined. Warms the cockles of your heart, doesn’t it?
I’ve never known quite what to do with the two Cardinal sightings I have had near our church in Morelia, since that species is not supposed to be seen there, or to be migratory, but both sightings occurred in winter. I have seen two Godwit species at Lake Cuitzeo. One is unusual, the other is extraordinary. It means something.
So many species that change eye color or leg color as they age. Gulls of the World: A Photographic Field Guide is a successor, or companion, as the author terms it, to Klaus Malling Olsen’s classic guide, Gulls of Europe, Asia and North America (Helm, 2004*). So many birds of white and gray touched with black.
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