te 
a Saeed | Mousey, Subsequent Nestings. 387 
The eggs in each set were three and practically alike in every 
respect. The birds could not be traced again after the taking of 
the second set, but the wood has been occupied again more than 
once, and the very same thorn bush was built in the following 
year. The nests of the Robins (Planesticus migratorius migrato- 
rius) were also situated in the little wood just mentioned above, 
and all three were placed on the fence rails bordering the same. 
The first set was a large pear-shaped one, being the largest in 
point of size that I have found so far. The succeeding ones were 
similar in shape but dropped down a good deal in point of length, 
and all three contained four eggs. After the taking of the last set, 
the birds could not be found again. They were certainly the only 
pair of Robins domiciled at the time in the wood, | 
The Chestnut-sided Warbler (Dendroica pensylvanica) is the 
next one on the list, and is interesting in many ways, if only for 
the reason that it was the first time I had come across a nest or even 
noticed the species here, the only others seen that year being a 
pair at Ayers Cliff some six miles away. The site of the three 
nests was on the roadside, the first being in the forks of a small 
nut bush three feet above the ground, the second being in a similar 
situation 24 yards to the south on the opposite side of the road, 
whilst the third was on the same side as the first, in a raspberry 
cane, 37 yards to the north, all three nests thus being within a 
space of 61 yards. They were identical in construction, one 
peculiarity about them however being that fine fir twigs were partly 
used in their outward construction, a material I have not noticed 
in subsequent ones found. The eggs are handsomely and somewhat 
boldly marked and wreathed at their larger end, the smaller or 
pointed end being generally free from spots with one exception, 
that of the last or eleventh egg laid, which is not only the largest 
of the series, but is more heavily blotched at the larger end, as well 
as finely speckled all over the smaller or pointed end than any of 
the others. If this egg is removed the remaining ten are practi- 
cally counterparts of one another, although the average size of each 
set varies a little, the first curiously enough being the smallest of 
the three, whilst the third is the largest in this respect, but the 
smallest in number of eggs (which one would naturally expect 
in a third set) there being only three instead of four as in the other 
