66: White-throated Sparrow

Birds of a Feather Talk Together

Join John Bates, Shannon Hackett, RJ Pole, and Amanda Marquart as we discuss the White-throated sparrow. We talk about sparrows in general, and how to differentiate them based on behavior and not just their appearance. We also talk about how they have been shrinking in size over the last 50 years, and how the specimen collection at the Field Museum have helped determine that. We also talk about their different head-types, and mating preferences between the two head types.

We also answer a mailbag question from a listener in the U.K. on vultures.
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