30 
THE EXTENSION 
. Distribution and Migration of North American Shore 
Birds 
. Food of the Woodpeckers of the United States 
. Woodpeckers in Relation to Trees and Wood Pro- 
ducts 
. Food of our more Important Flycatchers 
Farmers’ Bulletins, U. S. Bureau of Biological Survey: 
He Biesoa. 
Circulars, 
Yo ebk.Sepe 
i 383. 
. 456. 
re 493. 
& 497. 
vy 506. 
Pe u7e 
Some Common Birds 
How to Destroy English Sparrows 
Our Grosbeaks and their Relation to Agriculture 
The English Sparrow as a Pest 
Some Common Game, Aquatic and Rapacious Birds 
in Relation to Man 
Food of some Well Known Birds of Forest, Farm 
and Garden. 
U. S. Bureau of Biological Survey: 
Bird Day in the Schools 
. Value of Swallows as Insect Destroyers 
. Hawks and Owls from the Standpoint of the Farmer 
. Private Game Preserves and Their Future in the 
United States. 
. Our Vanishing Shorebirds 
. Three Important Wild Duck Foods 
Separate Reprints from the Yearbook. Apply for 
Yearbook Separate, giving number. 
“cc 
37. Part 2. The Meadowlark and Baltimore Oriole 
133. Birds as Weed Destroyers 
364. Some Benefits the Farmer May Derive from 
Game Protection 
443. Does it Pay Farmers to Protect Birds? 
474. The Economic Value of Predaceous Birds and 
Mammals 
486. The Relations between Birds and Insects 
504. Plants Useful to Attract Birds and Protect Fruit 
545. The Migratory Movements of Birds in Relation 
to the Weather 
564. Bird Enemies of the Codling Mith. 
EDUCATIONAL LEAFLETS: 
Published by the National Association of Audubon So- 
cieties, 1974 Broadway, New York, especially useful for 
schools. 
1. Nighthawk 11. Screech Owl 
3. Meadowlark 12. Short-eared Owl 
4. Robin 13. Ostrich 
5. Flicker 14. Barn Owl 
7. Snowy Heron 15. Tree Sparrow 
8. Marsh Hawk 16. Yellow-billed Cuckoo 
9. Red-shouldered Hawk 29. Herring Gull 
10. American Sparrow Hawk 
