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 […]
Category: Fringillidae
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 […]
THE SUBSPECIES OF HESPERIPHONA VESPERTINA
Evening Grosbeak (Hesperiphona vespertina) Science Article 1 abstract The writer’s attention was first called to the systematic status of the Evening Grosbeaks of western North America by Mr. Allan Brooks who stated in a letter that he had found certain peculiarities in his series gathered in British Columbia. JOSEPH GRINNELL, THE CONDOR Vol. 19, 1917 […]
WINTER SURVEY DATA REVEAL RANGEWIDE DECLINE IN EVENINGGROSBEAK POPULATIONS
Evening Grosbeak (Hesperiphona vespertina) Science Article 3 abstract Once one of the most common species seen at bird feeding stations across much of North America in winter, the Evening Grosbeak (Coccothraustes vespertinus), appears to be experiencing a population decline. Like other finches associatedwith the boreal forest or high elevations, Evening Grosbeaks form flocks in winter, […]
Juvenal plumage of the Evening Grosbeak
Evening Grosbeak (Hesperiphona vespertina) Science Article 2 abstract All the authorities that have dealt with the plumages of the Evening Grosbeak have described the juveniles of both sexes as resembling the adult female. Allan Brooks, The AUK vol. 56, 1939 Download article download full text (pdf)
Loss of a Citril Finch Serinus citrinella nest possibly as a result of ant predation
Citril Finch (Serinus citrinella) Science Article 1 abstract Ants have been reported as the direct or indirect cause for nest loss in a few bird species. Here we describe a possible instance affecting a Citril Finch Serinus citrinella nest in the Spanish Pre-Pyrenees. The nest was found on 18 may 2002, when building activity was […]
Biometrics of Citril Finch Serinus citrinella in the west Pyrenees and the influence of feather abrasion on biometric data
Citril Finch (Serinus citrinella) Science Article 2 abstract Biometric data are an essential component of studies into the breeding biology of bird populations. Citril Finches Serinus citrinella in the Pyrenees mainly feed on pine seeds, and coniferous habitats in the west Pyrenees are of significant conservation importance. The aim of this study was to increase […]
Chaffinch Fringilla coelebs foraging patterns,nestling survival and territory distribution onlowland farmland
Chaffinch (Fringilla coelebs) Science Article 3 abstract Numbers of many bird species which breed on farmland, and are reliant oncropped land for feeding or nesting, declined between the 1960s and 1990s. Incontrast, Chaffinch Fringilla coelebs numbers increased on farmland over thesame period. This study investigates the influence of both cropped and noncroppedland on Chaffinches foraging […]
Structural conservation and variation in the mitochondrial control region of fringilline finches (Fringilla spp.) and the greenfinch (Carduelis chloris
Chaffinch (Fringilla coelebs) Science Article 2 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 […]
Some aspects of Chaffinch Fringilla coelebs biology, based on an analysis of individuals ringed during 1991 to 2003 in Norfolk, England
Chaffinch (Fringilla coelebs) Science Article 1 abstract From 1991 to 2003, 2,954 Chaffinches Fringilla coelebs were caught and ringed, year-round, at Hilborough, Norfolk, England. The age and sex composition of Chaffinches varied between winters, but no systematic pattern was apparent. The age and sex composition of Chaffinches caught during winter did not vary significantly from […]