Zobrazeno 1 - 10
of 13
pro vyhledávání: '"S. C. Norman"'
Autor:
S. C. Norman
Publikováno v:
Ibis. 139:617-630
A study of 56 species of Sylviidae occurring in the western Palaearctic showed a significantly less extensive post-juvenile moult in those species which incur longer migrations to winter quarters than in species that migrate short distances. Species
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf01798694cbd0ec27aa7f9517da8c83
https://doi.org/10.1111/j.1474-919x.1997.tb04684.x
https://doi.org/10.1111/j.1474-919x.1997.tb04684.x
Autor:
Les G. Underhill, David Pearson, Anthony J. Tree, R. P. Prys-Jones, D. N. Johnson, R. J. Dowsett, S. C. Norman, P. Herroelen, M. R. Lawn
Publikováno v:
Ibis. 134:286-297
The Willow Warbler Phylloscopus trochilus is one of the few bird species that undergoes two primary moults a year, a post-nuptial moult in the breeding area and a moult in the wintering area. Primary-moult data for Willow Warblers from Finland, Swede
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37e5365e27e8f18cd4087540d70be70d
https://doi.org/10.1111/j.1474-919x.1992.tb03811.x
https://doi.org/10.1111/j.1474-919x.1992.tb03811.x
Autor:
S. C. Norman
Publikováno v:
Ringing & Migration. 12:80-85
An examination of 191 juvenile Chiffchaffs in Cleveland, north‐east England showed all birds renewed body, head and tail covert feathers during post‐juvenile moult. Replacement of inner greater coverts, tertials and central tail feathers occurred
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30aca850fdb50f21f64ce86710ff9166
https://doi.org/10.1080/03078698.1991.9673995
https://doi.org/10.1080/03078698.1991.9673995
Autor:
S. C. Norman
Publikováno v:
Ringing & Migration. 11:90-100
A long‐term study (1975 to 1989) on a population of Willow Warblers showed that in each year the majority of male birds commenced post‐nuptial moult before females. It is suggested that this was due, in part, to an annual rhythm in moult onset an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bde525665fbf08e47bfbe0dbd3cd1801
https://doi.org/10.1080/03078698.1990.9673967
https://doi.org/10.1080/03078698.1990.9673967
Autor:
S. C. Norman
Publikováno v:
Ringing & Migration. 11:12-22
This paper contains the commencement, sequence, extent and duration of moult, and body weights during moult in first‐year Sylvia warblers. Lesser Whitethroats, Whitethroats and Blackcaps moulted the five feather areas in the same sequence but Garde
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4f1ef115b41950a0780f9f7b7d894cb
https://doi.org/10.1080/03078698.1990.9673956
https://doi.org/10.1080/03078698.1990.9673956
Autor:
S C Norman
Publikováno v:
Ringing & Migration. 13:117-119
Yellowhammers caught in North Yorks and Cleveland were photographed concentrating on tail feathers. A plumage feature on the outer tail feathers allowed 97% (n=100) of birds to be aged correctly. During March 5% of birds were noted moulting some tail
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0884feb26e2464ae2faa4995aa6ac7c1
https://doi.org/10.1080/03078698.1992.9674029
https://doi.org/10.1080/03078698.1992.9674029
Autor:
W. Norman, S. C. Norman
Publikováno v:
Ringing & Migration. 7:75-84
Spring movements of Willow Warblers through Britain and Europe were analysed using 317 recoveries of birds ringed in Britain and 17 abroad obtained from the British Trust for Ornithology. Timing, speed and direction of migration were investigated and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efe280446596c5c8af3146547bc9917f
https://doi.org/10.1080/03078698.1986.9673884
https://doi.org/10.1080/03078698.1986.9673884
Autor:
S. C. Norman
Publikováno v:
Ringing & Migration. 4:149-154
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b70e3bfd74c86ba0098accc3f4571a3
https://doi.org/10.1080/03078698.1983.9673799
https://doi.org/10.1080/03078698.1983.9673799
Autor:
S. C. Norman
Publikováno v:
Ringing & Migration. 8:73-82
The relationship between weights of Willow Warblers and the autumn migration strategy of the species was investigated by examination of weights of first‐autumn birds captured at two coastal and two inland sites in Britain over the period 16 July to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d4c8bdf6603d7a7709a69edc81592eb
https://doi.org/10.1080/03078698.1987.9673904
https://doi.org/10.1080/03078698.1987.9673904
Autor:
S. C. Norman
Publikováno v:
Ringing & Migration. 4:269-274
(1983). Variations in wing‐lengths of willow warblers in relation to age, sex and season. Ringing & Migration: Vol. 4, No. 5, pp. 269-274.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d55760d146eb2490c0b43bb09661667c
https://doi.org/10.1080/03078698.1983.9673819
https://doi.org/10.1080/03078698.1983.9673819