Do Burrowing Owls Disperse Plague-Infected Fleas?

Western Burrowing Owls (Athene cunicularia hypugaea) and Pulex irritans, the so-called human flea, have a curious host-parasite relationship. Although we’ve known about it for some time, many details of their connection remain unclear, including why it appears mainly in the northwestern portion of the Burrowing Owl’s range despite the fact that both species have much broader geographic distributions.

Mr. Cairngorms

In 2013, while compiling information for a chapter on the contributions of ornithology to evolutionary biology, I carried on a lively correspondence, by email, with Adam Watson. Watson was a …

In the Shadow of Men

In 1973, I was stranded for several days on a small island in Witless Bay off the southeast coast of Newfoundland. I had gone there several times already that summer, …

Dirty Birds

As a teenager, in the 1960s, I spent much of my spare time during the school year hanging out at the Royal Ontario Museum (ROM), not far from my family’s …

How Vulnerable are California’s Great Gray Owls to Wildfire?

Throughout western North America, the combination of longer, hotter dry seasons and dense forests is yielding more frequent, larger, and more severe wildfires, including immense “megafires.” Habitat loss from increased fire activity could put wildlife species that depend on mature forest at risk.

The Nice Bird Club

When I took first-year Zoology at the University of Toronto, in the 1960s, our lab instructor/coordinator was Dr J. Murray Speirs. Speirs was a kindly gentleman with a bit of …