BIRDS COUNTED PER DAY 
— NUMBER OF BIRDS 
NESTING 
VERY EARLY ARRIVAL 
EARLY INFLUX 
DEFINITE INFLUX 
LC 3.0 
2.0 
5 
1.0 
2 10 20 302 10 20 30 9 19°29 — 9 )5sioumce 10 
APRIL MAY JUNE JULY AUGUST 
CENTRAL 
50 
45 
40 
NUMBER OF BIRDS 
35 
30 
| 
Zo x 
ax 
o =) 
4 pre 
204 73 Jae 
a = 
I54> Piz 5.0 
7 OR Ri: 
> WwW (a) 
ue 3.0 
2.0 
: fe) 
LAYING I. 
fe) fe) 
9°10 20 30 10. 20 30° (9. 19° °29 9 9 eioSmece 10 
APRIL MAY JUNE JULY AUGUST 
35 
Xe — NUMBER OF BIRDS 
25 
20 
VERY EARLY ARRIVAL 
EARLY INFLUX 
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