National Audubon Society Field Guide to the Pacific NorthwestNational Audubon SocietyEsaurito4,5Avvisami
Birds of East Africa: Kenya, Tanzania, Uganda, Rwanda, Burundi Second EditionNigel RedmanEsaurito4,8Avvisami
Atlas migrace ptáků České a Slovenské republiky. Czech and Slovak bird migration atlasJaroslav CepákEsaurito5,0Avvisami
Birds of India : Pakistan, Nepal, Bangladesh, Bhutan, Sri Lanka, and the MaldivesRichard GrimmettEsaurito4,4Avvisami
