ralph_behrens:
Eurasian tree sparrow / Feldsperling (Passer montanus)
ralph_behrens:
Eurasian tree sparrow / Feldsperling (Passer montanus)
ralph_behrens:
House sparrow / Haussperling (Passer domesticus)
ralph_behrens:
European tree sparrow / Feldsperling (Passer montanus)