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.”.

Feral Cats 252

Feral Cats Cats Tnr Feral 252

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.

Killing 274

Killing Cats Fish Birds 274

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

Feral Cats 252

Feral Cats North America Feral Cats 252

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?

Birds 153

Birds Blackbirds Mexico Cattle 153

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.

Puerto Rico 181

Puerto Rico Guam Virgin Islands Feral 181