OCTOBER, 1902. 
THE MIGRATION OF HIRDS. 
245 
in 1.3 — out 5.8 — Swift ^ 
in 2.8 — out 5.2 — Swift Same species. 
in 2.8 — out 5.2 — Swift _) 
in 8.6 — out 7.8 — Out of focus. 
in 2.5 — out 5.7 — Curved below center, circling 
the edge of the field, 
in 2.7 — out 5.7 — Curved over center. Total 9. 
1 :[5 to I 130 — in 0.0 — out 0.0 — No observations taken. 
1:30 to 1:45 — ii'^ 4-2 — o^^^ 
in i.o — out 5.8 — Slightly out of focus. 
in 2.4 — out 6.8 — Distant. 
in 8.3 — out 6.8. 
in 3.0 — out 5.9 — Out of focus. 
in 8.2 — out 6.0 — Out of focus. 
in 2.0 — out 6.0 — Close and large. This bird 
made a complete turn in the 
field. 
in 1.0 — out 5.8 — Total 8. 
1:45 to 2:00 — in 1.0 — out 6.8. 
in 2.3 — out 5.8 — 2 birds, both curved over cen- 
ter. 
in 8.4— out 7.1 — Out of focus, 
in 8.6 — out 7.0. 
in 3.0— out 4.9. 
in 1.0 — out 6.5 — Out of focus, curved, 
in 3.7— out 5.7. 
in 1.7 — out 5.3 — Out of focus. Total 9. 
2:00 to 2:15 — in 0.0 — out 0.0 — No observations taken. 
2:15 to 2:30 — in 7.0 — out 6.0 — Out of focus. 
in 3-5— out 4.2. 
, in 2.3 — out 5.6 — Size 3 — 2 birds. 
in 4.8 — out 7.9 — Size i — . 
in 2.2 — out 5.8 — Slow — Wing-strokes plain. 
in 2.0 — out 5.2 — Swift. 
in 2.1 — out 4.0 — Looked as if propelled by 
wind. 
in 5.5 — out 1.7 — Out of focus — Total 9. 
2 130 to 2 :45— in 2.0 — out 6.0. 
in 8.6 — out 7.2. 
in 2.0 — out 5.2. 
in T.o- — out 5.2. 
in T.8 — out 5.5 — Swift. 
in T.8 — out 5.2 — Out of focus. 
