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CapsuleApparent survival rates of Whinchats breeding in abandoned fields differ in relation to prior breeding success, probably indicating that site fidelity depends on prior nesting success. AimsTo examine apparent survival, and hence site fidelity, and its association with previous breeding success in Whinchats breeding in abandoned fields. MethodsWe ringed and measured apparent survival and age ratios of Whinchats in abandoned fields over nine years. We modelled the impact of age, nest stage, and time of season on daily nest survival rates. ResultsThere were 3.77 fledglings per pair (n = 251). Annual variability and a nest age effect were the most important components of nest survival variation. Adult apparent survival after successful breeding was 0.32 ± 0.08 and after unsuccessful breeding this was 0.11 ± 0.08. Among 229 males with known age, 39% were second calendar year, and 61% were older than the second calendar year. From 744 ringed nestlings only 7 birds returned the following years. ConclusionWhinchats in abandoned fields of Eastern Europe show low rates of breeding success and apparent survival. Apparent survival after successful breeding is significantly higher than after unsuccessful breeding, because unsuccessful breeders probably move to new breeding sites the following year. [ABSTRACT FROM AUTHOR]

The article discusses the results of a study which monitors the predators, nest survival, and breeding performance of Booted Warbler Iduna caligata living in the abandoned fields in Vologda, Russia. Daily survival rates (DSR) of birds were modeled by analyzing 250 nests recorded in 2002-2011. The results showed that inter-seasonal variability as the key component of DSR variation. The study indicated the key predators of Booted Warbler include carnivorous mammals such as Common Viper, Harriers, and corvids. It also mentioned the impact of intra- and inter-annual fluctuations in predator activity on nest success of Booted Warbler.

This article presents a study which investigated site fidelity and natal philopatry in three passerine species within an isolated patch of suitable habitat in European North of Russia. Researchers analyzed five years of Russian banding data on Booted Warbler, Whinchat and Yellow Wagtail. They discovered that the survival rate of the Yellow Wagtail was higher than that of the Whinchat and Booted Warbler. The study concludes that species-specific returning rates and annual fluctuation are defined by mortality and reproductive success.