OCTOBER, 1902. 
THE MIGRATION OF BIRDS. 
231 
10:15 to 10:30 — in 2.3 — out 5.3 — Swift — Size i. 
in 2.2 — out 6.3 — Swift — Size i. 
in 5.0 — out 7.0 — Swift — Size i. 
in 2.3 — out 8.2 — Wing-strokes visible, looked 
as if flying sidewise. 
in 4.2 — out 6.0. 
in 8.9 — out 7.0 — Out of focus. 
in 3.7 — out 6.0 — Size i — . Very tiny, curved 
over center, 
in 2.2 — out 5.8 — \'ery slow — Size 3 — Total 8. 
10:30 to 10:45 — i^'i 3-7 — oi-^t 6.8 — Size i — Flight like goldfinch, 
in 8.0 — out 7.2 — Size 3. 
in 2.2 — out 4.8 — Swift — Size i — . Very tiny 
— Total 3. 
10:45 to 11:00 — in 2.0 — out 7.5 — Swift — Size 2-|-. 
in 2.2 — out 5.3 — Out of focus. 
in 3.1 — out 6.2 — Size 2- 1 -. Wing-strokes visible. 
in 2.2 — out 6.9 — Size i. 
in 2.5 — out 5.8 — Swift — Total 5. 
11:00 to 11:15 — in 1.2 — out 8.2. 
in i.o — out 7.1 — Size 2-|-. Curved. 
in 2.7 — out 7.2. 
in 8.9 — out 5.7 — Very swift — Size i — . Tiny, 
in 2.2 — out 6.8. 
in 2.7 — out 5.7 — Swift — Size 2-|-. Total 6. 
11:15 to 11:30 — in 1.5 — out 5.2 — Slow — Out of focus. 
in 2.1 — out 6.8 — Size 3 — .Wing-strokes visible. 
in 2.1 — out 5.6 — Size 2. 
in 1.3 — out 7.1 — Total 4. 
11:30 to 11:45— in 2.4— out 5.3. 
in 3.0 — out 6.4 — Total 2. 
11:45 to 12:00 — in 2.2 — out 8.5 — Size 3-|-. Gull(?), large, slen- 
der wings and square tail. 
in 3.2 — out 4.8 — Size 2. 
in 1.8 — out 5.2 — Swift — Total 3. 
12:00 to 12:15 — ^1"^ 2.7 — out 4.3 — Size 3. 
in 1.7 — out 6.0 — Out of focus. 
in 3.8 — out 4.2 — Size 3 — Curved. 
in 1.6 — out 6.8 — Size 2. 
in 8.5 — out 5.8 — Out of focus — Total 5. 
12:15 to 12:30 — in 0.0 — out 0.0 — No observations made. 
12:30 to 12:45 — 8.8 — out 7.2 — Slightly out of focus. 
in 2.8 — out 6.0 — Same species as preceding. 
