Description
English: Illustration by Louis Agassiz Fuertes of a Red Crossbill (Loxia curvirostra) from The Burgess Bird Book for Children
Date 1919
Source http://biodiversitylibrary.org/page/18025038
Author Louis Agassiz Fuertes (1874–1927) https://en.wikipedia.org/wiki/Louis_Agassiz_Fuertes
Source: https://commons.wikimedia.org/wiki/File:Snipper_the_Crossbill.jpg

The red crossbill (Loxia curvirostra) is a small passerine bird in the finch family Fringillidae, also known as the common crossbill in Eurasia. Crossbills have distinctive mandibles, crossed at the tips, which enable them to extract seeds from conifer cones and other fruits.