Join for FREE
It only takes a minute!
Alternative name: Two-barred Crossbill
There are two subspecies:
Almost entirely spruce forests.
This is one of several species of Crossbills and other birds that exhibit eruptive behavior: they may be resident for several years in a breeding area but are then induced by unfavorable environmental factors to migrate in numbers to areas in which they otherwise are absent.
The diet includes pine nuts extracted from cones using their bill adapted for prying.
 External Links