Golden Eagle

Birds of New York /.Albany :University of the State of New York,1910-1914..biodiversitylibrary.org/page/20083262

The birds of North AmericaNew York :Published under the auspices of the Natural Science Association of America,1903. biodiversitylibrary.org/page/35159679Aquila chrysaetos use 9 different calls 2 communicate esp. when their young & food are involved! biodiversitylibrary.org/page/35159679 #bhlpod > thx @eol

Coloured figures of the birds of the British Islands. v.1London :R. H. Porter,1885-1897.biodiversitylibrary.org/page/34514782

Coloured figures of the birds of the British Islands. v.1London :R. H. Porter,1885-1897.biodiversitylibrary.org/page/34514784

The human side of birds,.New York,Frederick A. Stokes company[c1917].biodiversitylibrary.org/page/6502189