Thomas R. Dunlap’s excellent In the Field, among the Feathered: a History of Birders and Their Guides (Oxford University Press, 2011) describes how bird guides gradually improved over time. One important innovation was the development of place- or region-specific guides and checklists.
In this post, I note 7 such guides and checklists with an eye on the California condor.
Continue reading “Regional field guides & checklists: 1964-2009”
There are historical reports of California condors in Canada. For those who like to consider the evidence, here are details from 8 sources.
Continue reading “Canada”
Birds and trees go together.
I have seen hundreds of images of California condors roosting or nesting in trees. In most of these images, the tree is dead.
Is that because California condors prefer their trees dead? Or is it that people prefer images of condors in trees that are dead?
Continue reading “Live trees or dead trees?”
Many images of the California condor also show their habitat in the background. We see condors soaring over mountains and the ocean, roosting in trees, and nesting in caves.
Habitat matters to the California condor. As part of his argument against capturing all condors for captive breeding, environmentalist David Brower wrote:
A condor is five per cent feathers, flesh, blood, and bone. All the rest is place.
In this post, I present images of just those places, the habitat, from a variety of sources.
Continue reading “Illustrations & photos of habitat: 1880s-1990”
It is hardly surprising that comparisons have been made between the California condor and large aircraft. Here are some examples.
Continue reading “Aircraft comparisons”