Trait lmentaire et complet d'ornithologie, ou, Histoire naturelle des oiseaux /.A Paris :Chez l'Auteur ... Duprat :1800--An VIII..biodiversitylibrary.org/page/39476376
Summary[edit] Description: English: Specimen of Loxia megaplaga collected by a Smithsonian expedition in 1912. Date: 1912. Source: Original publication: Expeditions organized or participated in by the Smithsonian Institution 66 (17): 38 Additional source (with incorrect lower image from page!) at Flickr. Author: William Louis Abbott (Life time: 1860-1936).
Summary[edit] Description: Male Parrot Crossbill (Loxia pytyopsittacus) sitting in a Spruce tree. Picture taken at Smithska udden, Gothenburg, Sweden. Date: 21 October 2007. Source: Own work. Author: Oskila.
Summary[edit] Description: Newbyth Wood, East Lothian, Scotland. Date: 18 April 2012, 10:14. Source: Crossbill on Norway Spruce. Author: S. Rae from Scotland, UK.