12 



i.':l.V:--^>, 



'rW 



25 



19 



A^il 



30 



t 





27 



29 



1 — 10 House Sparrow, Passer domesticus (L.). 11 — 20 Tree Sparrow, P. montanus (L.). 



21 — 24 Rock Sparrow, Petronia petronia (L.). 



25 Parrot Crossbill, Loxia pytyopsittacus Borkh. 26—29 Crossbill, L. curvirostra L. 



30 American Crossbill, L. curvirostra americana Wils. 



