Rook, Bird Identification Guide
Por um escritor misterioso
Descrição
Rook, crow or raven? How to tell them apart - Woodland Trust
Rook (bird) - Wikipedia
Identification of Juvenile Rooks and Carrion Crows - Corvid Isle
Corvids: Their Differences and Similarities – Spiritual Carol Blog
British crow family guide: identification, habitat and species facts
Rook (Corvus frugilegus) - North American Birds - Birds of North America
BTO Bird ID - Corvids - Crow, Rook, Raven
June ID tips: Juvenile Rook and Carrion Crow - BirdGuides
ID Guide to British crows [Corvids] – British Naturalists' Association
Rook Bird Facts (Corvus frugilegus)
Rook - eBird
de
por adulto (o preço varia de acordo com o tamanho do grupo)
