1, 7, 10, 27. Alauda.
2, 11, 21. Turdus.
3, 4, 5, 9, 12, 15, 17, 18, 20, 23, 25, 26. Motacilla.
6, 30. Emberiza.
8, 28. Hirundo.
13, 16, 19. Pringilla.
22, 24. Parus.
14, 29. Loxia.
Birds that sing as they fly are but few:
Skylark, Raii nomina. Alauda vulgaris: Rising, suspended, and falling.