ABA Photo Quiz
with Tony Leukering

January 2023 Photo Quiz

January 20th, 2023|

There are at least two features that often distinguish between skilled, experienced birders and others when it comes to large flocks of birds. The first is the understanding that just because many or most of the individuals of a large flock of birds appear to be referable to the same species does not necessarily mean that such an assumption is true for the entire flock.

Advanced Identification

Mexican Duck Photo Essay

The Mexican Duck, Anas platyrhynchos diazi, was recognized as a full species (then A. diazi) until the American Ornithological Society (AOS; then AOU) merged it with the Mallard (AOU 1983), largely based on data from Hubbard (1977). However, recent genetic studies strongly suggest that the Mexican Duck should be returned to full species status. These photos are intended to provide a realistic overview of the challenge of identifying Mexican Ducks in the ABA Area.

Status & Distribution: the Most Under-used ID Feature

This feature is not something that is only just coming to light, nor is it related to the introduction of digital cameras, nor is it due to the internet—although the internet has enabled a more thorough understanding of it. This incredible identification feature is temporal likelihood, aka time of year.