Josef UyedaAlways struck by how much more the House Sparrow body size maps match the weather on the worst days of winter than it does the average climate of a region. 1) Today's temperature map 2) House sparrow body sizes 3) USDA planting zones
Peter Ralph@pseudacris Nice! How much difference is there between the smallest and biggest?
@petrelharp Not really sure, but my best guess from interpreting PC scores and limited raw data is about a 15% change in average mass, maybe 5% in linear measurements? I'm sure someone knows better than me.