| a survey for yersinia pseudotuberculosis in migratory birds in coastal japan. | yersinia pseudotuberculosis was isolated from three specimens of two species of birds, the black-faced bunting (emberiza spodocephala) and pied wagtail (motacilla alba), of 528 specimens of birds examined from coastal regions in japan. the two isolated strains of y. pseudotuberculosis were identified as serovar 4b and serovar 3. this is the first isolation of y. pseudotuberculosis from birds in japan. yersinia enterocolitica was isolated from three specimens of the pied wagtail, one specimen of ... | 1989 | 2761013 |
| egg colour mimicry in the common cuckoo cuculus canorus as revealed by modelling host retinal function. | some parasite cuckoo species lay eggs that, to the human eye, appear to mimic the appearance of the eggs of their favourite hosts, which hinders discrimination and removal of their eggs by host species. hitherto, perception of cuckoo-host egg mimicry has been estimated based on human vision or spectrophotometry, which does not account for what the receivers' eye (i.e. hosts) actually discriminates. using a discrimination model approach that reproduces host retinal functioning, and museum egg col ... | 2008 | 18595836 |
| unusual finding of trichobilharzia sp. in motacilla alba in the czech republic. | adult male worms of trichobilharzia sp. recovered from a pied wagtail (motacilla alba) in the czech republic were found to belong to a new species of the genus. the finding of trichobilharzia sp. in a passeriform bird in europe represents an important discovery, as only anseriform birds have thus far been reported as final hosts of the european trichobilharzia species. | 2006 | 16469179 |
| [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-ura ... | 2016 | 24459856 |
| the matching law applies to wagtails' foraging in the wild. | field data concerning the time budgets and foraging success of pied wagtails (motacilla alba yarrelli, gould) are reanalyzed. it is found that the data are well described by the generalized matching law, with a marked bias towards spending time on the territory. in this case matching is not the result of maximizing reward rate, but it remains possible that it results from an allocation of time that maximizes survival. | 1986 | 16812441 |
| selecting appropriate focal species for assessing the risk to birds from newly drilled pesticide-treated winter cereal fields in france. | identifying focal bird species appropriate to the situation in which a plant protection product is used is important for refined risk assessment (efsa ). we analyzed the results of extensive field observations of newly drilled cereal fields in france in autumn over 2 seasons to determine real bird focal species. in 2011, birds were observed before and after drilling on wheat and barley fields drilled with imidacloprid-treated seeds (i.e., "treatment" fields) or seeds treated with compounds other ... | 2019 | 30515968 |