FOURTH SEASON (1921) : RECORD 149 
us in no doubt whatever that the Cuckoo did not 
Jay again. In fact, we had so manipulated matters 
that no more of her natural fosterer’s nests should 
be available, and consequently that inducement for 
her to resume laying would be wholly lacking. 
On June 22 the fourth nest of No. 7 pair, from 
which we had taken the Cuckoo’s eleventh egg on 
June 5 with two of the fosterers, replacing the eggs 
with substitutes, now contained three hatched 
Meadow Pipits and a newly-laid egg of a strange 
Cuckoo, placed there since the 20th (see p. 142). 
Before discussing a few features of Cuckoo A’s 
fourth season, a tabular record of her layings is given 
here. 
Cuckoo A’s Fourth Season's Eggs 
No. 
Date. 
Fosterer. Time of laying. 
No. of Fosterer’s 
Particular pair of eggs when 
Pipits victimised. combined. 
A 1 
May 12 
Meadow Pipit 
5-5 P-m. 
No. 6 
4 
A 2 
14 
99 
i.55 P.m. 
No. 4 
2 
A 1 
,, 16 
,, 
4.26 p.m. 
No. 9 
1 
A 4 
„ 18 
99 
4-15 P-m. 
No. 5 
2 
As 
A 6 
,, 20 
„ 24 
Tree Pipit 
Meadow Pipit 
2.50 p.m. 
5.10 p.m. 
No. 6 
2 
4 
A? 
,, 26 
,, 
2.20 p.m. 
No. 4 
3 
A 8 
„ 28 
9 ) 
5 p.m. 
No. 9 
3 
A 9 
„ 30 
99 
5.25 P-m. 
No. 6 
1 
A 10 
June 1 
99 
4.20 p.m. 
Nos. 3 and 4 
1 
A 11 
„ 5 
5.18 p.m. 
combined 
No. 7 
3 
A 12 
„ 7 
99 
3.50 p.m. 
No. 9 
4 
A*s 
„ 9 
99 
1. 15 p.m. 
No. 6 
3 
A 14 
„ 11 
99 
4.0 p.m. 
No. 5 
5 
A IS 
„ 13 
)> 
9.40 a.m. 
Nos. 3 and 4 
4 
E 
June 21 
combined 
One Egg by Another Cuckoo 
or 22 Meadow Pipit No. 7 
