This is a preview. Log in through your library . Abstract Bird songs may vary in amplitude for several reasons. Variations due to differences in environmental conditions are well known but whether ...
Kargopol', 39 km S, 13 km W, at river Petenga, 10 km upstream from lake Lacha, Kargopol'skiy Rayon, Arkhangel'skaya Oblast', Russia, Asia ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results