10,000 Birds
OCTOBER 25, 2016
Agonizing quandaries concerning invasive species are well-known to wildlife biologists. They argue for the elimination of free-range cats entirely. Arriving in North America around the time of Columbus, they have become “one of the most successful invasive species on earth.”.
10,000 Birds
JUNE 3, 2020
I am only responding to my subjective impression of a single species’ appearance here; specifically, that of the Bronzed Cowbird. Instead, they lay their eggs in other species’ nests, and let those nest-making birds (often significantly smaller than the cowbirds) raise their young. Native versus invasive species?
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10,000 Birds
SEPTEMBER 13, 2014
Back in 2009, Tai Haku sent us a fascinating post exploring a question that ecologists worldwide grapple with: can the translocation of rare species into niches left empty by extinction be successful or justified? How ecologically similar are the two species? It is extinct. There are any number of concerns one could raise.
10,000 Birds
JULY 22, 2014
Also, feral Cats on islands seem to be a serious problem, causing the extirpation of some indigenous species. A hungry feral Cat in Minnesota goes and finds new prey in an area it previously had not explored, leaving the last few of one or another bird species alone for a while. We estimate that free-ranging domestic cats kill 1.4–3.7
10,000 Birds
JULY 22, 2024
The Ochraceous Bulbul looks similar to the Puff-throated Bulbul, with which it shares a genus – the similarity made one of my travel companions doubt the whole framework of species distinctions. Paul Conrad (1836-1885), a German naturalist in the East Indies, after which the species is named ( Pycnonotus conradi ).
10,000 Birds
SEPTEMBER 16, 2014
A recent meta study ( The impact of free-ranging domestic cats on wildlife of the United States ) that applied strict inclusion criteria and some fancy statistics estimates that 2.4 About 15 million birds are killed annually by hunters, and of course this is distributed among a very small number of species.
10,000 Birds
JULY 8, 2024
Still, one source states that this is the second-rarest of all crane species. What methods are effective to protect an endangered crane species? On Hokkaido, the number rose from 33 in 1952 to about 1200 now, with the bird presumably benefiting from its symbolic importance for Japanese culture and its pull for tourists.
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