article thumbnail

Feral Cats Are An Invasive Species in North America (and elsewhere)

10,000 Birds

In North America, you’ve got Bears at the large end, Cats in the middle, and at the smaller end, the Mustilids. Dogs are similarly dispersed across size ranges, with Foxes, Coyotes, and Wolves taking prey across different parts of the size range. That part of the carnivore landscape is taken by other animals. Plus, Coyotes eat Cats.

article thumbnail

How much bird is there, anyway?

10,000 Birds

Here, we see that mammals have a narrower distribution of size at the low end while birds have more size diversity. If we were to remove the hooved animals and non-Mustelidae carnivores (i.e.,

Mammals 174
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Trending Sources

article thumbnail

At Sea With the Marine Birds of the Raincoast: A Book Review

10,000 Birds

Though the coast of British Columbia, a part of the Great Bear Rainforest, was rich in both, it was appallingly deficient in scientific data. The Achiever’s survey voyages took place from 2005 to 2008; the goal was to collect baseline data on sea mammals and marine birds. And, this was badly needed.

Fox 100
article thumbnail

Come@Me: Hunting Is Not Conservation

10,000 Birds

That year Congress passed the Lacey Act, followed by the tougher Weeks-McLean Act in 1913 and, five years later, the Migratory Bird Treaty Act, which protected not just birds but also their eggs, nests, and feathers 1. The persecution of these apex predators, especially wolves , is rampant among some hunters and cattle ranchers.

Hunting 110