Two birds with very unusual development of their beaks in adaptation to peculiar food habits are the Crossbill with crossed mandibles for extracting seeds from cones, and the Hummingbird with its needle-like bill for probing blossoms for nectar.
(Two birds with very unusual development of their beaks in adaptation to peculiar food habits; are; the Crossbill)
Two birds with very unusual development of their beaks in adaptation to peculiar food habits
are
the Crossbill