TROP Ao US DAU B10 Ne eB bas Hal N 5 
TABLE 2 
RELATIVE ABUNDANCE 
No. of Per Cent 
Warblers Total Years Seen of Total 
1. American Redstart 616 10 eo koa 
2. Western Palm 587 10 Aan 
3. Myrtle 5b7 10 14.03 
4. Magnolia 474 10 11.91 
5. Northern Yellow-throat 204 10 5.4 
6. Chestnut-sided 182 10 4.58 
7. Black and White 166 10 4.18 
8. Blackburnian 138 10 3.47 
9. Oven-bird 125 10 3.15 
10. Wilson’s 122 10 3.07 
11. Grinnell’s Water-Thrush 116 10 2.92 
12. Nashville 112 10 2.82 
13. Black-throated Green 109 9 2t4 
14. Canada 3 10 2.08 
15. Bay-breasted 78 a 1.96 
16. Yellow 3 10 1.84 
17. Cape May 70 10 1.76 
18. Black-poll 3 i ites .76 
19. Northern Parula 21 X oe 
20. Mourning 17 8 43 
21. Black-throated Blue 16 8 40 
22. Orange-crowned 15 fi ot 
23. Tennessee is: uf cot 
24. Connecticut fal 6 28 
25. Louisiana Water-Thrush fi 4 18 
26. Yellow-breasted Chat rf 5 18 
27. Prothonotary 6 5 15 
28. Golden-winged 5 2 13 
29. Kentucky 4 4 10 
30. Lawrence’s 3 Hf 08 
31. Northern Pine a Ys 05 
32. Brewster’s 1 1 Ai} 
50. Prairie 1 14 08 
TOTALS 3,973 100.00 % 
would be the proportion of time the observer spent on areas bordering 
water. The type of habitat at the water’s edge would also have a definite 
bearing upon the birds seen. My records for water-thrushes, the prothon- 
otary warbler, yellow-throat and other species particularly partial to 
water, would, of course, be materially increased if a greater percentage of 
my notes had been made at the edge of a stream or pool. But when we 
are attempting to maintain some sort of a norm, how shall we decide upon 
the amount of water that constitutes the typical warbler habitat? This 
question of what is “the average” continually occurs and the solution is 
often difficult or impossible. 
It was largely due to this fact that I was at one time inclined to 
present the figures I had assembled in two or three tables and let the 
reader draw his own conclusions. However, Mr. Philip DuMont, one of 
those who encouraged me to work up this study, was of the opinion that 
proper treatment should include some explanation and interpretation of 
