The flight feather moult pattern of the bearded vulture (Gypaetus barbatus). [PDF]
Moult is an extremely time-consuming and energy-demanding task for large birds. In addition, there is a trade-off between the time devoted to moulting and that invested in other activities such as breeding and/or territory exploration. Moreover, it takes
A Adam +43 more
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Moult-Induced Changes in Gut Microbiota of African Penguins (Spheniscus demersus) [PDF]
The gut microbiota of seabirds can undergo shifts during the moulting period due to fasting. Understanding the characteristics of gut microbiota in African penguins (Spheniscus demersus) throughout moulting is meaningful for the conservation and ...
Jingle Jiang +5 more
doaj +2 more sources
Divergent primary moult-A rare moult sequence among Western Palaearctic passerines.
Wing morphology strongly affects flight performance which may consequently decline during feather moult due to the creation of feather gaps in the wing. Hence, the size and shape of moult-related wing gap may directly affect flight capacity.
Yosef Kiat
doaj +4 more sources
The paper aimed to present the evolution of food intake, body weight, laying performance, mortality, ovary and oviduct weight and protein metabolism in 63-week-old natural moulted Hy-Line var. Brown hens housed in industrial system.
Cristiana GENES +3 more
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Differences in phenology across three trophic levels between two Afrotropical sites separated by four degrees latitude [PDF]
Birds time their life cycle events to favourable windows in environmental conditions. In tropical environments, where photoperiod variation is small, birds show high variability in the timing of life cycle stages, yet these species have been severely ...
Crinan Jarrett +10 more
doaj +2 more sources
Ethological investigation on moulting laying hens in organic farming [PDF]
Introduction Organic egg farmers mainly rely on the same hybrids, breeding techniques and production schemes as conventional egg producers. This includes annual replacement of the laying hens.
Hirt, Helen, Zeltner, Esther
core +2 more sources
Diet of moulting Swainson's Thrushes (Catharus ustulatus) and Tennessee Warblers (Leiothlypis peregrina) at a stopover site during fall migration measured with fecal DNA metabarcoding [PDF]
Moult and migration are energetically demanding and require adequate nutrition. In some species, individuals may interrupt their fall migration to moult at discrete stopover locations outside of their breeding grounds (i.e., moult-migration) leading to ...
Ana Blanc-Benigeri +4 more
doaj +2 more sources
Sequence and intensity are two essential components of bird moult. While the moult sequences of remex tracts are highly homogenous across passerines, other tracts apparently show a high variability.
Santi Guallar, Javier Quesada
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The effects of temperature on photoperiodic responses: implications for climate change [PDF]
Migratory birds regularly perform impressive long-distance flights, which are timed relative to the anticipated environmental resources at destination areas that can be several thousand kilometres away.
Dawson, Alistair, Visser, Marcel E.
core +14 more sources
Moult Strategies Affect Age Differences in Autumn Migration Timing in East Mediterranean Migratory Passerines. [PDF]
Adult passerines renew their flight feathers at least once every year. This complete moult occurs either in the breeding areas, just after breeding (summer moult), or, in some long-distance migratory species, at the non-breeding areas, after arrival to ...
Yosef Kiat, Ido Izhaki
doaj +1 more source

