Two-barred crossbill (Loxia leucoptera bifasciata) illustrated by the von Wright brothers. Digitally enhanced from our own… https://www.rawpixel.com/image/325911/premium-illustration-image-bird-crossbill-stateView licenseTwo-barred crossbill (Loxia leucoptera bifasciata) illustrated by the von Wright brothers. Digitally enhanced from our own… https://www.rawpixel.com/image/325988/premium-illustration-psd-crossbill-america-ancientView licenseWhite-winged Crossbill from Birds of America (1827) by John James Audubon, etched by William Home Lizars. Original from… https://www.rawpixel.com/image/277197/free-illustration-image-audubon-audubon-america-birds-public-domainFree Image from public domain licenseTwo-barred crossbill (Loxia leucoptera bifasciata) illustrated by the von Wright brothers. Digitally enhanced from our own… https://www.rawpixel.com/image/325898/free-illustration-image-von-wright-brothers-loxia-bifasciata-crossbillFree Image from public domain license144. The American Crossbill (Loxia americana) 145. The White-winged Crossbill (Loxia leucoptera) illustration from Zoology… https://www.rawpixel.com/image/329294/free-illustration-image-crossbill-zoology-new-york-bird-public-domainFree Image from public domain license