ILLUSTRATIONS. 



PLATES. 



Page. 



Plate I. Four common seed-destroying sparrows - . . Frontispiece. 



II. Fragments of insects found in birds' stomachs 12 



III. Fragments of grain and fruit found in birds' stomachs 13 



IV. Diagram showing proportions of food of six sparrows 92 



TEXT FIGURES. 



Fig. 1. Cutworm and moth 8 



2. Grasshopper _ — , 8 



3. Leaf-beetle ..-- 9 



4. Weevil _........ 9 



5. Ichneumon fly 10 



6. Ground-beetle 10 



7. Jaw of May-beetle . . _ 13 



8. Eyes of spider _. 14 



9. Spicule of earthworm ....--. 14 



10. Section of stem of fossil sea-lily , _ 19 



11. Dung-beetle (Aphodius) 20 



12. Rocky Mountain locust 23 



13. Four common weeds destroyed by sparrows 24 



14. Weed seeds commonly eaten by sparrows 25 



15. Lark sparrow 66 



16. Field sparrow .__. 79 



17. Song sparrow _ _ 82 



18. Dickcissel .'... _ 89 



19. English sparrow. _ . „ . _ 92 



5 



