The behavioural rhythms of organisms are thought to be under strong selection, influenced
by the rhythmicity of the environment,,,. Such behavioural rhythms are well studied in …

Despite clear benefits of optimal arrival time on breeding grounds, migration schedules may
vary with an individual bird's innate quality, non-breeding habitat or breeding destination …

Abstract Semipalmated Sandpiper (Calidris pusilla) populations have undergone significant
declines at core nonbreeding sites in northeastern South America. Breeding populations …

Understanding the biology, constraints of migration, and the yearly movement patterns of
birds is essential to conserving them, particularly in the case of long-distant migrant …

Despite clear links between wind conditions and timing of migration at the population level,
no study has examined the contribution of winds to annual variation in the migration timing …

Background Geolocators are useful for tracking movements of long-distance migrants, but
potential negative effects on birds have not been well studied. We tested for effects of …

Worldwide many long-distance migratory species are in decline (Wilcove et al. 2008)
creating an urgency for a detailed mapping of their migratory itineraries to aid the …

Conservation of long-distance migratory shorebirds is complex because these species use
habitats spread across continents and hemispheres, making identification of critical habitats …

Surveys and banding records of Calidris canutus rufa indicate that Red Knots migrate mainly
north and south through Massachusetts, Delaware Bay, and Virginia, and winter in Florida …

The Semipalmated Sandpiper (Calidris pusilla) is a small, abundant shorebird that breeds
primarily in sub-Arctic to mid-Arctic habitats across the Nearctic and winters principally along …