Results 31 to 40 of about 10,647,434 (247)

Patterns of parental care and movement in divided broods of golden‐winged warblers

open access: yesJournal of Avian Biology, 2022
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]

open access: yesPLoS ONE, 2015
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]

open access: yesBiodiversity Data Journal, 2021
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]

open access: yes
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]

open access: yes, 2015
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

Factors affecting vocalization in Tengmalm's owl (Aegolius funereus) fledglings during post-fledging dependence period: scramble competition or honest signalling of need?

open access: yesPLoS ONE, 2014
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

Time Spent With Parents Varies With Early-Life Condition, but Does Not Predict Survival or Sociality of Juvenile Hihi

open access: yesFrontiers in Ecology and Evolution, 2019
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 habitat selection in a rapidly declining farmland bird, the European turtle dove Streptopelia turtur

open access: yes, 2017
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

Differential post-fledging habitat use of Nearctic-Neotropical migratory birds within an urbanized landscape

open access: yesMovement Ecology, 2018
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

Survival and development of predator avoidance in the post-fledging period of the Whinchat (Saxicola rubetra): consequences for conservation measures

open access: yesJournal of Ornithology, 2011
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

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