LIST OF ILLUSTEATIONS 



PAQB 



1. Gannet, Murres, PiiflBns, and Razorbilled Auks 



Frontispiece 



Tailpiece. Young Baltimore Oriole 5 



Initial. Long-focus camera and telephoto lens ... 6 



3. Lens test No. 1 14 



3. Enlargement of the bird in test No. 1 .... 15 



4. Lens test No. 3 ... . .... 16 



5. Enlargement of bird in test No. 2 17 



6. Lens test No. 3 18 



7. Enlargement of bird in test No. 3 19 



Initial. Young Great-crested Flycatcher .... 36 



8. Spring 37 



9. Summer 37 



10. Autumn 28 



11. Winter — four pictures (Nos. 8-11) from the same point 



of view . 38 



13. Nest locality of five species 29 



13. Nesting site, nest, and young of Marsh Hawk ... 30 



14. Young Marsh Hawks and nest 31 



15. Young Great-crested Flycatcher 33 



16. Young Baltimore Orioles and nest 33 



17. "Wood Thrush on nest 34 



18. Chestnut-sided Warbler on nest 35 



19. Catbird scolding 37 



Initial. " Fairview " 40 



20. House Sparrows and Junco 41 



21. Junco . 43 



23. Female House Sparrow and nest 43 



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