Results 31 to 40 of about 10,647,434 (247)
Patterns of parental care and movement in divided broods of golden‐winged warblers
Post‐fledging brood division is a poorly understood, yet widespread suite of avian behaviours that includes both division of parental care and spatial division of a brood. For most species, the differences in parental care between adult males and females
Sean M. Peterson +4 more
doaj +1 more source
Sex-Specific Habitat Utilization and Differential Breeding Investments in Christmas Island Frigatebirds throughout the Breeding Cycle. [PDF]
In seabirds, equal bi-parental care is the rule, as it is considered crucial for raising chicks successfully because seabirds forage in an environment with unpredictable and highly variable food supply.
Janos C Hennicke +2 more
doaj +1 more source
Re-introduction of the Saker Falcon (Falco cherrug) in Bulgaria - preliminary results from the ongoing establishment phase by 2020 [PDF]
Considered extinct as breeding species in the early 2000s, the Saker Falcon was recovered when the first active nest from the new history of the species in Bulgaria was discovered in 2018, formed of two birds that were re-introduced back in 2015 ...
Ivanka Lazarova +4 more
doaj +3 more sources
Association of Sex, Fledging Date, and Sibling Relationships with Post-Fledging Movements of Burrowing Owls in a Nonmigratory Population in the Imperial Valley, California [PDF]
Natal dispersal is an important driver of population and colonization dynamics, yet factors that affect timing and distance of post-fledging movements are poorly understood.
Rosenberg, Daniel K., Catlin, Daniel H.
core +6 more sources
How the importance of survival estimates in estimating Whinchat population dynamics depends on the scale of migratory connectivity and site fidelity [PDF]
Accurate monitoring of whinchat population dynamics requires accurate estimates of breeding season survival and productivity, non-breeding survival and site fidelity (dispersal, immigration and emmigration).
Cresswell, Will
core +2 more sources
Begging behaviour of nestlings has been intensively studied for several decades as a key component of parent-offspring conflict. There are essentially two main theories to account for intensity of food solicitation among offspring: that intensity of ...
Marek Kouba +2 more
doaj +1 more source
Many young birds die soon after fledging, as they lack the skills to find food and avoid predation. Post-fledging parental care is assumed to assist acquisition of these vital skills. However, we still lack empirical examples examining the length of time
Victoria R. Franks +8 more
doaj +1 more source
Post-fledging survival plays a vital role in the dynamics of bird populations and yet is the least studied avian life-stage. Habitat requirements post-fledging may have important implications for behaviour and survival, especially for declining ...
Jenny Dunn (17157112) +2 more
core +2 more sources
Background Persistent declines in migratory songbird populations continue to motivate research exploring contributing factors to inform conservation efforts. Nearctic-Neotropical migratory species’ population declines have been linked to habitat loss and
Zachary S. Ladin +8 more
doaj +1 more source
Farmland bird populations in Europe are shrinking, largely due to modern agriculture practices. In grasslands, the shift to early mowing is believed to be particularly responsible for this decline because it is interwoven with breeding time—a change that birds in general have not adapted to.
Tome, Davorin, Denac, Damijan
openaire +2 more sources

