APRIL, 1902. SOME RECENT OBSERVATIONS ON MIGRATION OF BIRDS. 
103 
Period, i :4s — 2 :oo. 
In. 
Out. 
Speed. 
Size. 
2-3 
44 
swift 
I 
1.6 
4.9 
swift 
2 
1-3 
4.8 
swift 
2 
1-3 
4-7 
swift 
2 
I. 
5-^ 
swift 
2 
8. 
5-7 
1+ 
8.9 
6. 
1+ 
2-3 
5-4 
2.8 
4.8 
2. 
5-8 
swift 
2* — 
2. 
5-5 
1.9 
5.6 
1.5 
5-6 
1.8 
4.8 
8.8 
5-8 
8.8 
5-5 
I 
DATA FROM BELOIT. 
Beloit, Wis., May 12, 1900. 
Remarks. 
same birds, rapidly 
succeeding each other. 
Birds are coming in bunches. 
First bunch — Same birds, all fly- 
ing about parallel to the line 
from 8.8 — 5.5, several in field at 
same time. Came too rapidly to 
note exact direction. 
Second bunch. 
1.8 5.8 2-— 
2. .S.8 
3- 8.3 I— 
1.2 6.3 2'^ — 
2.1 4.3 slow 2 
1.2 6. I 
1.8 5.8 2 
3. 6.3 swift 
2.8 5.8 2 
T.6 5.8 
Total number of Birds, 35. 
*Looked like same speeies. 
