Sentences with phrase «crossbill ecotypes»
«Their vocalization, their flight call, is how we can categorize the crossbill ecotypes in the absence if information on their bill sizes.»
https://www.sciencedaily.com/ Not exact matches
Unlike other migratory North American red crossbills, the South Hills crossbill is a permanent resident in this small mountain range, while other ecotypes regularly move through and even breed in the region.
The team studied the genetic structure of 9 ecotypes of the red crossbill.