| Abstract: | Temporal stability of morphometric measurements is desirable when using avian morphology as a predictor of geographic origin. Therefore, to assess their temporal stability, we examined changes in morphology of Yellow-headed Blackbirds (Xanthocephalus xanthocephalus) from central North Dakota during summer. Measurements differed among age classes and between sexes. As expected, due to growth and maturation, measurements on hatching-year birds increased over summer. Measurements of adult plumage fluctuated with prebasic molt and exhibited age-specific discontinuities. Body mass of adult birds increased over summer, whereas both culmen length and skull length decreased. Only body length and length of internal skeletal elements were temporally stable in adult Yellow-headed Blackbirds. |
| Genre: | Article |
| ProdID: | 5224114 |
| Citation Author: | Twedt, D. J.; Linz, G.M. |
| Citation Contributing Office: | Patuxent Wildlife Research Center |
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| Citation End Page: | 43 |
| Citation Issue: | 1 |
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| Citation Language: | English |
| Citation Larger Work Title: | Western North American Naturalist |
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| Citation Number Of Pages: | 5 |
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| Citation Phsyical Description: | 39-43 |
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| Citation Public Comments: | 5834_Twedt.pdf |
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| Citation Search Results Text: | Morphometric changes in Yellow-headed Blackbirds during summer in central North Dakota; 2002; Article; Journal; Western North American Naturalist; Twedt, D. J.; Linz, G.M. |
| Citation Start Page: | 39 |
| Citation Volume: | 62 |
| Citation Year: | 2002 |
| Type: | citation/reference |
| Text: | Morphometric changes in Yellow-headed Blackbirds during summer in central North Dakota; 2002; Article; Journal; Western North American Naturalist; Twedt, D. J.; Linz, G.M. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DOCUMENT): | http://contentdm.lib.byu.edu/cdm4/document.php?CISOROOT=/NANaturalist&CISOPTR=229&REC=5 |
| Date Other: | Wed, 16 Jun 2010 12:18 -0500 |
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