page_title: Red crossbill
section_title: Diversity
hierarchical_section_title: Red crossbill / Taxonomy and systematics / Diversity
caption_attribution_description: English: Crossbill skull and jaw anatomy from Yarrell's History of British Birds 1843 (detail)
context_page_description: The red crossbill is a small passerine bird in the finch family Fringillidae, also known as the common crossbill in Eurosiberia. Crossbills have distinctive mandibles, crossed at the tips, which enable them to extract seeds from conifer cones and other fruits.
  Adults are often brightly coloured, with red or orange males and green or yellow females, but there is wide variation in colour, beak size and shape, and call types, leading to different classifications of variants, some of which have been named as subspecies.
caption: Crossbill skull and jaw anatomy from William Yarrell's A History of British Birds (1843)
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