Much Ado About a Cockatoo

For the past week or so the internet has been abuzz about a cockatoo depicted 4 times in the margins of Frederick II’s De Arte Venandi cum Avibus written around 1245 …

Audubon’s Legendary Experiments

In his Ornithological Biography [1], John James Audubon describes two experiments that have become legends in the annals of ornithology. Both were ingenious ideas, but Audubon’s conclusions were misleading and …

The Spring Rivalry of Birds

Unless you have been living in a cave for the past couple of months, you will have been well aware of the spectacle of mature, powerful males posturing to one …

George Ord’s Warbler

I have always liked the Cape May Warbler. The male in spring is a handsome bird, but scarce enough here in eastern Ontario that I see only one or two …

Lumpers and Splitters

Almost everyone I know who is interested in birds has their favourite group, and the reasons for those favourites vary widely. For some, the difficulty—and their mastery—of field identification is …

The First Textbook of Ornithology?

Despite their association with school courses, and the ready availability of information online, textbooks have long been—and still are—useful for working ornithologists. The OED says that a textbook is : A …