Tuesday, September 3rd
One of the morphometrics we collected from every bird is the amount of fat accumulated in the furcula (analogous to our collar bone); migrating songbirds accumulate large stores of fat to help fuel their long journey. Because they accumulate fat subcutaneously and their skin is "clear" we can easily make a qualitative assessment (scale of 0 to 7) of how much fat a bird has. This Fox Sparrow had a fat score of 5!
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