Data for "Extra-pair paternity variation in two passerine birds breeding in a gradient of urbanisation"

"nests_warsaw.xlsx" contains nest data for blue tits and great tits."nestlings_warsaw.xlsx" contains nestling data for blue tits and great tits."genotypes_blue_tits_warsaw.csv" and "genotypes_great_tits_warsaw.csv" contain genotypes.

"nests_warsaw.xlsx" 包含蓝山雀（blue tit）与大山雀（great tit）的巢数据。"nestlings_warsaw.xlsx" 包含蓝山雀与大山雀的雏鸟数据。"genotypes_blue_tits_warsaw.csv" 与 "genotypes_great_tits_warsaw.csv" 包含二者的基因型数据。