Tag: all of Carduelis

No evidence of genetic differentiation betweenlesser redpolls Carduelis flammea cabaret andcommon redpolls Carduelis f. flammea

Redpoll (Carduelis flammea) Science Article 1 abstract The remarkable variation in plumage and morphological characters in the redpoll complexCarduelis flammea-hornemanni has puzzled taxonomists for several decades. In contrast,molecular studies have not revealed any genetic differentiation among the phenotypic redpollforms. This could either be a result of high present-day gene flow or morphological differentiationfollowing a rapid […]

A pair of the Redpoll Carduelis flammea with two clutches in Finnmark, North Norway

Redpoll (Carduelis flammea) Science Article 2 abstract On 21 July 1999 I found, together with Per J. Tommeraas, a nest of the Redpoll Carduelis flammea with four eggs 4 m high up in a birch at Virdnejavvri in the Alta-Kautokeino water system in Finnmark, North Norway, north of the Arctic Polar Circle. The nest was […]

Ecological aspects of migration, and pre-migratory fat deposition in the lesser redpoll, Carduelis flammea cabaret

Redpoll (Carduelis flammea) Science Article 3 abstract This paper is a sequel to an earlier paper on the Lesser Redpoll (Evans 1966a), in which I discussed the timing of its annual (post-nuptial) molt in relation to the timing of breeding and autumn migration and described variations in the total weights of birds during late summer […]

Migration patterns of two populations of Twite Carduelis flavirostris in Britain

Twite (Carduelis flavirostris) Science Article 1 abstract Following a recent large decline in range and numbers, the Twite Carduelis flavirostris is a red-listed bird of conservation concern. An understanding of the species’ movements between wintering and breeding areas is essential to underpin effective conservation. The migration patterns of two populations of Twite were examined: those […]

Natal philopatry and local movement patterns of Twite Carduelis flavirostris

Twite (Carduelis flavirostris) Science Article 2 abstract The Twite Carduelis flavirostris is classified as a red-listed bird of conservation concern in the United Kingdom. Successful conservation initiatives will depend on an understanding of local movement patterns and natal philopatry as these will be important in determining how likely the species is to colonise new nesting […]

Population fluctuations of Siskins Carduelis spinus,Common Crossbills Loxia curvirostra, and Citril FinchesCarduelis citrinella in relationship to flowering intensityof spruce Picea abies

Siskin (Carduelis spinus) Science Article 1 abstract Annual population abundances from 1992 to 2002 of Siskins Carduelis spinus, CommonCrossbills Loxia curvirostra and Citril Finches Carduelis citrinella were studied in relationto flowering intensity of spruce Picea abies.We used point countmethod to study thechanges in abundance of the three species in the Northern Black Forest (southwest Germany).Our […]

Open-habitat birds in recently burned areas: the role of the fire extent and species’ habitat breadth

Linnet (Carduelis cannabina) Science Article 2 abstract Single burned areas contained 0 to 15 open-habitat species (mean = 7.6), and in all the areas combined there were 22 species, including 17 with an unfavourable conservation status in Europe. The most frequent were Carduelis cannabina, Lullula arborea, Alectoris rufa, Oenanthe hispanica and Emberiza cia, but characteristic […]

Communal roosting of Linnets (Carduelis cannabina) and Blue-headed Wagtails (Motacilla flava) at post-breeding period in Western Poland.

Linnet (Carduelis cannabina) Science Article 1 abstract Communal roosting of Linnets (Carduelis cannabina) and Blue-headed Wagtails (Motacilla flava) at post-breeding period in Western Poland Surmacki A, Lorek G & Tryjanowski P., Vogelwarte. vol 40, no 1-2. p. 146-148 Download article download full text (pdf)

Structural conservation and variation in the mitochondrial control region of fringilline finches (Fringilla spp.) and the greenfinch (Carduelis chloris

Greenfinch (Carduelis chloris) Science Article 4 abstract We sequenced the entire control region and portions of flanking genes (tRNAPhe, tRNAGiu, and ND6) in the common chaffinch (Fringilla coelebs), blue chaffinch (F. teydea), brambling (F. montifringilla), and greenfinch (Carduelis chloris). In these finches the control region is similar in length (1,223-1,237 bp) and has the same […]

Sexing juvenile Greenfinches Carduelis chloris by the extent of black on the tail

Greenfinch (Carduelis chloris) Science Article 2 abstract There is increasing interest in the study of the evolution of sex ratios in birds. Correct assignment of sex to fledgling and juvenile birds is critical for studies that deal with differential sex allocation at nests or sexual variation in survival or dispersion rates. Here we describe a […]