Parrot crossbill
Template:Short description Template:Speciesbox The parrot crossbill (Loxia pytyopsittacus) is a small passerine bird in the finch family Fringillidae. It breeds in pine forests in northern and northeastern Europe.
TaxonomyEdit
The parrot crossbill was formerly described in 1793 by the German naturalist Moritz Balthasar Borkhausen under the binomial name Loxia pytyopsittacus.<ref>Template:Cite book</ref> The type locality was designated as Sweden by Ernst Hartert.
<ref>Template:Cite book</ref><ref>Template:Cite book</ref> The species is monotypic: no subspecies are recognised.<ref name=ioc>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The genus name Loxia is from Ancient Greek loxos meaning "crosswise"; the specific epithet pytyopsittacus combines pitus, pituos meaning "pine" with psittakos meaning "parrot.<ref name="job">Template:Cite book</ref> The crossbills are characterised by the mandibles crossing at their tips, which gives the group its English name.
Some pine-feeding populations currently assigned to red crossbill in southern Europe may possibly be better referred to either this species or alternatively to new species in their own right, but as yet, research into them is still at a very early stage.
DescriptionEdit
Adult males tend to be red or orange in colour, and females green or yellow, but there is much variation. This species is difficult to separate from red and Scottish crossbills, and plumage distinctions are negligible. It is slightly larger than other crossbills, measuring Template:Convert long and spanning Template:Convert across the wings.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> It is quite bulky and heavy weighing from Template:Convert, with an average of Template:Convert.<ref name = "CRC">CRC Handbook of Avian Body Masses by John B. Dunning Jr. (Editor). CRC Press (1992), Template:ISBN.</ref> The head and bill are larger than in either of the other species. The bill is thicker than those of its relatives, and the crossed tips are often not readily apparent. Extreme care is needed to identify this species. The deeper, harder choop or tyuup call is probably the best indicator.
Distribution and habitatEdit
This bird breeds in the pine forests of northwest Europe and into western Russia. There is also a small population in Scotland, adding to the difficulty of distinguishing it from the sympatric red crossbill and the endemic Scottish crossbill. This crossbill is mainly resident, but will migrate south and west if its food source fails.
BehaviourEdit
Parrot crossbills will form flocks outside the breeding season, often mixed with other crossbills.
Food and feedingEdit
They are specialist feeders on conifer cones, and the unusual bill shape is an adaptation to assist the extraction of the seeds from the cone. The parrot crossbill is a specialist feeder on the cones of Scots pine.
- Loxia pytyopsittacus MHNT.ZOO.2010.11.220 Laponie HdeB.jpg
Egg of Loxia pytyopsittacus MHNT
- Loxia pityopsittacus NAUMANN.jpg
ReferencesEdit
External linksEdit
- Loxia Fantastica Blog dealing with crossbills in Scotland