10,000 Birds
OCTOBER 22, 2014
The last time I visited Portola was in the summer of 2011 when the Swainson’s Hawks ( Buteo swainsoni ) were nesting there. They are listed as a Species of Special Concern in Utah, Nevada, Oregon, and Washington, and as Threatened in California. This is the painting of the species by John James Audubon in the early 1800′s.
10,000 Birds
JUNE 1, 2021
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.
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10,000 Birds
JULY 24, 2014
Greater Rheas, a species the Germans call Nandu, are very popular in Germany and frequently kept in zoos as well as private enclosures. Their current population stands at more than 150 birds (I have no recent population estimate, but there were 129 in 2012, up from 100 in 2011), and they are spreading slowly but consistently.
10,000 Birds
FEBRUARY 5, 2012
This thrush is extremely common in urban and suburban Germany and one of the most conspicuous bird species here, comparable to the American Robin in North America. Because this was such a common species, we lacked quantitative data to be certain that this lack was an actual “situation” and not just the ordinary seasonal variation.
10,000 Birds
JULY 21, 2011
For instance, I can lay my hands on data for primates and rodents (because I’ve collected those data for research) but I don’t have comparable data for bovids (just selected data) and zero data for birds (in spreadsheets on my computer). Accessed July 12, 2011 at [link] a. Sources Laden, Greg. Oxford University Press.
10,000 Birds
DECEMBER 1, 2020
I should add that the Big Owls taking over NYC social and even hard print media, dominating conversations with my nonbirder friends and family, are not the only owls in the five boroughs, but like a musical, the closer you are to Broadway, the closer you are to fame and fortune (and maybe even a higher quality rodent for dinner, who knows?).
4 The Love Of Animals
MARCH 17, 2011
Elephants, whales, hippopotamuses, giraffes, and alligators use low-frequency sounds to communicate over long distances, often miles; and bats, dolphins, whales, frogs, and various rodents use high-frequency sounds to find food, communicate with others, and navigate. the Spring 2011 issue of YES!
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