| Titre : | Journal of Field Ornithology 89(2) - July, 2018 |
| Type de document : | Bulletin |
| Paru le : | 26/07/2018 |
Dépouillements
Article
Vladimir Dinets, Auteur ;
Kristaps Sokolovskis, Auteur ;
Daniel Hanley, Auteur ;
Mark E. Hauber, Auteur
Two species of obligate brood-parasitic Cuculus cuckoos are expanding their ranges in Beringia. Both now breed on the Asian side, close to the Bering Strait, and are found in Alaska during the breeding season. From May to July 2017, we used pain[...]
Article
Vanesa Bejarano, Auteur ;
Alex E. Jahn, Auteur
For migratory birds, early arrival at breeding areas has many benefits, such as acquisition of better territories and mates. This strategy has been found in numerous species breeding at north-temperate latitudes, but has not been yet reported fo[...]
Article
Ariel K. Lenske, Auteur ;
Joseph J. Nocera, Auteur
Documenting local space use of birds that move rapidly, but are too small to carry GPS tags, such as swallows and swifts, can be challenging. For these species, tracking methods such as manual radio-telemetry and visual observation are either in[...]
Article
Quentin R. Hays, Auteur ;
Yolanda E. Morbey, Auteur ;
Keith A. Hobson, Auteur ;
James E. Lyons, Auteur ;
Christopher G. Guglielmo, Auteur
Migration distance and sex are integral to avian migration strategies, yet these intrinsic factors are understudied with respect to their effects on stopover ecology and behavior. We investigated how individual variation in migration distance an[...]
Article
Csenge Sinkovics, Auteur ;
Gábor Seress, Auteur ;
Virág Fábián, Auteur ;
Krisztina Sándor, Auteur ;
András Liker, Auteur
Video recordings are commonly used to study the types, amount, and size of food items provided to nestling birds. However, the accuracy and repeatability of estimates of the size of food items from video recordings has not been examined. We asse[...]
Article
Paul Tuck, Auteur ;
David V. Gesicki, Auteur ;
Verner P. Bingman, Auteur
Many species of birds that normally migrate during the night have been observed engaging in so-called morning flights during the early morning. The results of previous studies have supported the hypothesis that one function of morning flights is[...]
Article
Jessica A. Klassen, Auteur ;
Dale E. Gawlik, Auteur
To preserve biodiversity, identifying at-risk populations and developing conservation plans to mitigate the effects of human-induced rapid environmental change (HIREC) are essential. Changes in diet, especially for food-limited species, can aid [...]
