OCTOBER, 1902. 
THE MIGRATION OF BIRDS. 
237 
in 
8.2— out 
2.3 — out 
1.8 — out 
6.3. 
m 
in 
5-7- 
5.0. 
in 8.9 — out 6.2 — Total 11. 
I :oo to I 130 — in 0.0 — out 0.0 — No observations taken. 
I 130 to I :45 — in 2.0 — out 4.9 — Slow — Flight like goldfinch. 
in i.o — out 5.0. 
in 8.7 — out 5.8 — Swift. 
in 2.2 — out 5.7. — Size 2 — . 
in 3.7 — out 5.0. — Swift. Size 2 — . 
in 1.8 — out 5.5. — Swift. Size 2 — . 
in 1.8 — out 4.5. — Swift. Size 2 — . 
in 2.3 — out 4.3. — Same birds rapidly succeed- 
in 8.5 — out 6.4. ing each other. Total 15. 
1:45 2:00 — in 2.3 — out 4.4. — Sw4ft. Size i. 
in 
1 .6 — out 
4.9.- 
-Swift. Size 2. 
in 
1.3 — out 
4.8.- 
-Swift. Size 2. 
in 
1.3 — out 
47.- 
-Same birds rapidly succeed- 
in 
1 .0 — out 
5-6. 
ing each other. 
in 
8.0 — out 
57. 
in 
8.9 — out 
6.0. 
in 
2.3 — out 
54- 
in 
2.8 — out 
4.8. 
in 
2.0 — out 
5-8-- 
-Swift. 
in 
2.0 — out 
5-5-- 
-Size 2-1-. 
in 
1 .9 — out 
5.6. 
in 
1.5— out 
5.6.- 
-This and 2 preceding are 
m 
111 
2.2 — out 
1.8— out 
4.9. 
4.9. 
same species. 
m 
111 
1.8— out 
8.8— out 
8.8— out 
4.8. 
5.8. 
5.5.— Size 
Same birds all flying about 
parallel to 8.8 — 5.5. They 
seem to be coming in 
