3 mi 
so seine hina a : 
Ae RRO ORO 5 RT SSE ao TENET 
Se  —— 7 
Fig. 24. — Eastern phoebe at nest built in old barn swallow nest built on an electrical insulator. 
Tape 3. — Clutch sizes of eastern phoebes in different regions of Illinois. 
oO 
Percent of Nests 
: by Clutch Size 
| Number Average 6 5 4 3 
mm Months of Nests Clutch Eggs Eggs Eggs Eggs 
a 
1 April-May 15 14 Ang 7 71 21 0 
| May 16-June 20 4.7 0 70 30 0 
al April-May 15 17 5.0 6 88 6 0 
| May 16-June 13 Shad) 0 77 15 8 
March-May 15 31 5.0 13 74 13 0 
May 16-June 52 oft) 0 53 47 0 
25 
