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安裝中文字典英文字典辭典工具!
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- Common Redpoll - BirdForum Opus
Hoary Redpoll is larger and paler with shorter, thicker bill and usually more extensive thigh feathering Undertail coverts usually unstreaked Lesser Redpoll smaller, darker and more heavily streaked Some individuals not safely identified Distribution Breeds in the northern parts of the New and Old Worlds
- Question on Redpolls | BirdForum
Examination of genotypes at SNPs associated with redpoll morphology (Fig 2b) suggest that the inversion region primarily separates the hoary redpoll from both the common and lesser redpolls, while the additional associations with other genomic regions separate the lesser redpoll from both the hoary and common redpolls " cheers, James
- AviList taxonomic decisions relevant to British birders and . . . - BirdForum
With a stunning Hornemann's Arctic Redpoll adorning the front cover of this month's magazine, it truly guts me that this lump has been implemented, but I was interested by the latter part of his comment about 'Redpoll': - "Recent genetic data have found weak evidence for population structure despite morphological differences (which are not
- Redpolls or Linnets? - BirdForum
There are at least two other subspecies of Common Redpoll: Icelandic Redpoll = C f Islandica Greenland Redpoll = C f rostrata The fact that flammea is the most often encountered subspecies of Common Redpoll here in the UK, probably accounts for why the two names Mealy and Common Redpoll have become interchangeable However, the other two
- Redpoll Taxonomy - BirdForum
We found no structure among redpoll individuals in mtDNA haplotypes or microsatellite allele frequencies, and only marginal differences between redpoll taxa in analyses of molecular variance (AMOVAs) of predefined groups In contrast, the two twite subspecies constituted two well-supported monophyletic groups
- Birds on Exmoor. - BirdForum
The Redpoll even managed to pose beautifully for you :t: Reply Pam_m Well-known member Jun 23, 2008 #14
- Is This A Leucistic Redpoll (Partial Albino)? - BirdForum
The Greenland race of Hoary Redpoll, called Hornemann's Redpoll I think, is paler than nominate (southern) race Hoary, but should be at least 10% larger than a Hoary The female is the whitest of them all, so guess that could be your bird if its bigger than the others?
- Redpoll - Leicestershire - Dec 3rd - BirdForum
Currently, three species are recognised: Lesser Redpoll, Common Redpoll and Arctic Redpoll www birdguides com At least I can be clearly sure that it is a 'Redpoll'!
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