Turdus viscivorus 213 
TFurtur auritus 392 
— orientalis 394 
— rupicola 394 
Unu Lapponica 70 
Undina leucocephala 677 
— mersa 677 
Upupa epops 122 
Uria alle 738 
— arraå 734 
— Briinnichii 734 
— Francsii 734 
— grylle 736 
— hringvia 732 
— intermedia 732 
— lacrymans 7352 
— lomvia 732, 734 
716 
|Uria minor 738 
— troile 732 
Utamania torda 744 
| Vanellus cristatus 452 
Her griseus 450 
|— Helveticus 450 
| melanogaster 450 
'|— varius 450 
' Vitiflora grisea 255 
"Vulpanser tadorna 652 
| Vultur cinereus 5 
— fulvus 7 
— monachus 5 
| 
|Yunx torquilla 113 
Xema Sabini 605 
| — troile (leucophthalmos) 732 
