Red Crossbill
Loxia curvirostra
Perching
Length: 6 in. (16 cm )
Dependent on pine cones for food, the bizarre crossed bill of this species is used to deftly extract seeds from this otherwise difficult source of food. Because of their dependency on this single source of food, the populations of Red Crossbills are constantly wandering to find local eruptions of cones. Where they were common one year, they may be completely absent the next. They also nest opportunistically from late winter to early spring. The nest is made of twigs and placed on a high horizontal branch away from the trunk. The hatchlings are fed a regurgitated puree of pine cone seeds. This species is usually in small flocks year round.
The four-digit banding code is RECR.
Male |
Female |
Fir forest
Oak-pine woodland
You may need to edit author's name to meet the style formats, which are in most cases "Last name, First name."
https://askabiologist.asu.edu/activities/bird/red-crossbill
Bibliographic details:
- Article: Red Crossbill
- Author(s): Dr. Biology
- Publisher: Arizona State University School of Life Sciences Ask A Biologist
- Site name: ASU - Ask A Biologist
- Date published: 13 Jul, 2017
- Date accessed: 23 May, 2025
- Link: https://askabiologist.asu.edu/activities/bird/red-crossbill
APA Style
Dr. Biology. (Thu, 07/13/2017 - 15:37). Red Crossbill. ASU - Ask A Biologist. Retrieved from https://askabiologist.asu.edu/activities/bird/red-crossbill
American Psychological Association. For more info, see http://owl.english.purdue.edu/owl/resource/560/10/
Chicago Manual of Style
Dr. Biology. "Red Crossbill". ASU - Ask A Biologist. 13 Jul 2017. https://askabiologist.asu.edu/activities/bird/red-crossbill
For more info, see http://owl.english.purdue.edu/owl/resource/717/04/
MLA 2017 Style
Dr. Biology. "Red Crossbill". ASU - Ask A Biologist. 13 Jul 2017. ASU - Ask A Biologist, Web. https://askabiologist.asu.edu/activities/bird/red-crossbill
Modern Language Association, 7th Ed. For more info, see http://owl.english.purdue.edu/owl/resource/747/08/
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