[Photoperiodic conditions during molting of the Indian pied wagtail (Motacilla alba dukhunensis) and location of its winter habitats].
The results of studying molting before the start of the mating season in Indian pied wagtail yearlings taken from the nests in the Lower Ob' region and in the mid-Urals and kept in captivity for a year are studied. Reliable differences in the completeness of molting in northern birds as compared with it in mid-Ural birds are revealed, as are requirements for the wintering photoperiod. We assume the existence of a latitudinal differentiation during this period: 20 degrees-30 degrees N for mid-Ural birds and 10 degrees-20 degrees N for northern wagtails.
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Ryzhanovskii
D000818:Animals; D017753:Ecosystem; D018978:Molting; D046109:Passeriformes / Q000502:physiology*; D017440:Photoperiod; D012621:Seasons; D012800:Siberia