LIST OF ILLUSTKATIONS 



PAGE 



1. Gannet, Murres, Puffins, and Razorbilled Auks 



Frontispiece 



Tailpiece. Young Baltimore Oriole 5 



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



2. Lens test No. 1 14 



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



4. Lens test No. 2 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 .... 26 



8. Spring 27 



9. Summer 27 



10. Autumn 28 



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



of view 28 



12. 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 32 



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 . . 42 



22. Female House Sparrow and nest 43 



