x LIST OF ILLUSTRATIONS 



XXXIV. PYGMY NUTHATCH 454 



XXXV. MOUNTAIN CHICKADEE . 458 



XXXVI. VARIED THRUSH 474 



DIAGRAMS. 



Measurement of Bill xxviii 



Measurement of Tarsus xxviii 



FIGURES IN THE TEXT, 



FIGURE PAGE 



1. Western Grebe, foot 2 



2. Loon, foot 2 



3. Tufted Puffin, foot 2 



4. Herring Gull, foot 2 



5. Parasitic Jaeger, bill 2 



6. Short-billed Gull, bill 2 



7. Black-footed Albatross, bill 3 



8. Giant Fulmar, bill 3 



9. Cormorant, foot 3 



10. Man-o'-War Bird, bill 3 



11. White-crested Cormorant, bill 3 



12. White Pelican, bill 3 



13. Merganser, foot 3 



14. White-faced Glossy Ibis, bill 4 



15. Green Heron, head .........4 



16. Sandhill Crane, foot 4 



17. Florida Gallinule, foot 4 



18. White -rum ped Sandpiper, foot 4 



19. Eilldeer, foot 4 



20. Western Grebe, head 5 



21. Horned Grebe, head 7 



22. Least Grebe 8 



23. Pied-billed Grebe .8 



24. Loon, bill .9 



25. Pacific Loon, head . . 11 



26. Tufted Puffin, bill 11 



27. California Murre, bill 11 



28. Rhinoceros Auklet, bill 12 



29. Pigeon Guillemot, bill 12 



30. Paroquet Auklet, bill 12 



31. Least Auklet, bill 12 



32. Tufted Puffin, head 12 



33. Rhinoceros Auklet, bill 13 



34. Paroquet Auklet, bill 14 



35. Least Auklet, bill 14 



