10,000 Birds

SEPTEMBER 4, 2012

The length of each bird species account varies, depending on whether the bird is native or a “visitor” (the book’s term for migrant) or vagrant, breeding or non breeding. They breed in dense colonies, incubate their single egg on the feet, and take more than a year to fledge a chick.

Georgia 174

Georgia Penguins Wildlife Whales 174

10,000 Birds

OCTOBER 1, 2013

The story of the cahow, a “Lazurus species” that was thought to be extinct for over 300 years and then discovered to be breeding on a tiny remote island in Bermuda, is part of modern birding legend. In 1951, there were 18 breeding pairs of cahows discovered on three tiny islands.

Birds 170

Birds Rats Breeding 2012 170

10,000 Birds

JULY 21, 2011

Here’s some data from the famous research project of Manu, Peru, giving biomass in kilograms per hectare. The clifftop habitats along rocky shores of the North Atlantic (on both sides of the pond) abound in bird biomass during breeding bouts, for instance. Oxford University Press. Amphibian’s and Reptiles: 3.4

Mammals 177

Mammals Rodents Birds Reptiles 177