EXPLANATION TO PLATE VI. 



Figs. 1, 2. Dolichonyx oryzivorus, Linnseus. Bobolink. 



Pigs. 3, 4, 5, 6. Molothrus ater, Boddaert. Cowbird. 



Figs. 7, 8. Molothrus ater obscurus, Gnielin. Dwarf Cowbird. 



Fig. 9. Callothrus robustus, Cabanis. Red-eyed Oowbird. 



Figs. 10, 11, 13. Xantliocephaltis xanthocephalus, 'Bonaparte. Yellow-headed Blackbird. 



Figs. 13, 14, 15. Agelaius phcenicens, Linnasus. Red-winged Blackbird. 



Figs. 16, 17. Agelaitis gubernator, Wagler. Bicolored Blackbird. 



Figs. 18, 19. Agelaius tricolor, Nuttall. Tricolored Blackbird. 



Figs. 20, 21. StTirnella magna, Linnaeus. Meadowlark. 



Fig. 22. Sturnella magna mexicana, Sclater. Mexican Meadowlark. 



Figs. 23, 24. Sturnella magna neglecta, Audubon. Western Meadowlark. 



Figs. 25, 26, 27. Icterus audubonii, Giraud. Audubon *s Oriole. 



Figs. 28, 29. Icterus parisoruin, Bonaparte. Scott's Oriole. 



Figs. 30, 31, 32. Icterus cucullatus, Swainson. Hooded Oriole. 



