| Titre : | Ringing & Migration 20(2) - November, 2000 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Hugh Boyd, Auteur ;
Michael V. Bell, Auteur ;
A. Donald Watson, Auteur
Records of first arrivals of geese at sites in Iceland between 1950 and 1997 are combined with dates of departures from Scottish roosts and flights seen over northern Scotland to identify when migratory movements occurred. Greylag Geese Anser an[...]
Article
M. P. Harris, Auteur ;
S. Wanless, Auteur ;
A. Webb, Auteur
Body masses of Common Guillemots Uria aalge in southeast Scotland showed a pronounced annual cycle with birds being consistently heavier during the moult and over the winter. On average, adults were significantly heavier than immatures and males[...]
Article
F. Lo Valvo, Auteur ;
B. Massa, Auteur
Between 1986 and 1998 1,374 adults and 1,708 chicks of Storm Petrels Hydrobates pelagicus have been ringed on Marettimo Is. (Sicily, Italy); 207 (15.1%) adults and 31 (1.8%) chicks were subsequently controlled. Only eight adults (0.6%) were reco[...]
Article
K. T. Pedersen, Auteur ;
E. B. Fritze, Auteur ;
S. P. Kharitonov, Auteur
In the greater Copenhagen area (54degree59'-56degree07'N, 11degree55'12degree40'E) 4899 Common Gulls were ringed from September to April in 1976 to 1993. Up to 31 December 1993, 11,824 ring-recoveries from 2,388 gulls (49% of the total number ri[...]
Article
Norman McCanch, Auteur
Article
John O'Halloran, Auteur ;
Patrick Smiddy, Auteur ;
Barry O'Mahony, Auteur
Totals of 1,833 nestling and 478 full grown Dippers Cinclus cinclus were ringed in southwest Ireland between 1989 and 1998. Three of these birds were reported by the public and we recaptured 373 individuals. Of these, 151 (40%) had moved from th[...]
Article
L. A. Hill, Auteur
House Martins Delichon urbica were examined for moult in autumn at breeding colonies on a north/south transect in W Spain. Adults and some early-brood juveniles had started flight feather moult; most were in active moult immediately prior to mig[...]
Article
N. Cleere, Auteur ;
D. Kelly, Auteur ;
C. W. T. Pilcher, Auteur
Article
Lluis Brotons, Auteur
Possible biases related to the use of recordings were assessed by comparing captures of Coal Tits Parus ater with mist nets in presence and absence of tape lures. Samples netted with and without tape lures differed in age composition but not in [...]
Article
J. M. Lekuona, Auteur ;
F. Campos, Auteur
During five consecutive years (1991-1996) fortnightly censuses were made just before sunset at twenty roosts of Cormorants Phalacrocorax carbo located at inland and coastal habitats in southern France and northern Spain. Some Cormorants had lost[...]
Article
Some suggestions are made about reporting the reliability of sexing criteria, with emphasis on their sensitivities and predictive values. Sexing criteria with imperfect sensitivities have lower predictive value for the rarer sex and can bias est[...]
Article
Iain G. Main, Auteur
Recoveries provided by 14 ringing schemes have been used to investigate the partial migration of Norwegian, Swedish, Finnish and Danish Greenfinches Carduelis chloris. More and longer seasonal movements are made by females than by males, and fir[...]
Article
J.-L. Mougin, Auteur ;
Christian Jouanin, Auteur ;
F. Roux, Auteur ;
F. Zino, Auteur
In Cory's Shearwater Calonectris diomedea on Selvagem Grande (30degree09'N, 15degree52'W), fledging weight influences the survival of chicks during the first weeks of their life at sea, larger fledglings having a higher probability of survival. [...]
