OCTOBER, 1902. 
THE MIGRATION OF BIRDS. 
213 
in 5.7 — out 7.0. 
in 2.9— out 7.8. 
in 3-5— ont 6.3. 
in 4.2 — out 5.6 — Total 13. 
10:45 to 11:00 — in 8.0 — out 6.0. 
in 3-3— ont 7.5. 
in 2.6 — out 7.6 — Total 3. 
11:00 to 11:15 — in 0.0 — out 0.0 — Total o. 
11:15 to 11:30 — in 2.5 — out 7.6 — Total i. 
Madison, Wis., Apr. 10, 1898. 
Meteorological Data. 
Wind — North to northwest, velocity 4. 
Temperaure — 45. 8^. 
Atmosphere — Cloudy at 2 P. ^l. to clear at 9 P. M. 
Total number of birds observed from 12:45 P- 3:00 
A.M.— 6. 
12:45 to 1:00 — in 0.0 — out 0.0 — Total o. 
1:00 to 1:15 — in 3.5 — out 8.6 — Slow — Size i — Total i. 
1:15 to 1:30 — in 3.1 — out 8.2 — Out of focus — Total i. 
1:30 to 1:45 — in 4.4 — out 8.1 — Total i. 
1 :45 to 2 :oo — in 3.2 — out 7.9 — Flying leisurely. 
in 3 :5 — out 7.2 — Faster — Same species as pre- 
ceding — Total 2. 
2:00 to 2:15 — in 0.0 — out 0.0 — Total o. 
2:15 to 2:30 — in 5.2 — out 7.9 — Total i. 
2 :30 to 2 :45 — in 0.0 — out 0.0 — Total o. 
2 :45 to 3 :oo — in 0.0 — out 0.0 — Total o. 
]\Iadison, Wis., May 5, 1898. 
Meteorological Data. 
Wind — North to southeast, velocity 4. 
Temperature — 46. 5". 
Atmosphere — Cloudy to clear. 
Total number of birds observed from 8:30 P. M. to 11:00 
p. M.-13. 
8 :30 to 8 :45 — in 4.5 — out 6.5 — Slow — Long wing-strokes — 
Sailing. 
in 4.4 — out 7.3 — Out of focus — 8 minutes of 
this period missed — Total 
2. 
8 :45 to 9 :oo — in 0.0 — out 0.0 — Total o. 
