eerie all Moustey, Subsequent Nestings. 385 
Commencing with the Yellow Warbler (Dendroica estiva estiva), 
I may say that it is of very erratic appearance at Hatley, as 
may be judged by reference to my ‘Birds of Hatley,’ Auk, Vol. 
33, 1916, p. 178, and the pair now under notice were the only ones 
seen in 1911. The first nest was found in a little patch of alders 
bordering a small stream in front of my house, and was placed in 
the forks of one of these saplings five feet above the ground, the 
second being in a similar situation only 150 yards further up the 
stream. As regards the sets of eggs they form one of the few 
exceptions where neither are altogether alike in ground color and 
markings, the former in the first set being of a greenish white with 
bold markings forming a wreath at the larger end, whilst that in 
the second is of a bluish white, with much less pronounced spots 
and wreath, the size however, being about the same in both cases. 
It was not before incubation had been in progress I estimated three 
days, that I found the second set, although the birds were observed 
in the neighborhood off and on all the time, but disappeared 
entirely and were never seen again after the taking of this last set. 
Notwithstanding the somewhat marked difference in the eggs which 
consisted of four in each case (the nests being exactly alike in con- 
struction) everything else is in favor of, and I have no misgivings 
in my own mind but that they belonged to the same pair of birds. 
The site of the Maryland Yellow-throats’ (Geothlypis trichas 
trichas) nests, was on the borders of “the marsh”’ so often mentioned 
in my ‘Birds of Hatley,’ the first one being on the ground at the 
foot of a very small nut shoot, amongst long grass, whilst the 
second was hidden in similar material at the foot of a small bramble. 
The eggs, three in number in each case, are all practically free from 
spots at their smaller end, whilst being zoned at the larger, and so 
alike are they in shape, size and markings that when mixed up, one 
cannot with certainty separate the two sets. Here again after the 
taking of the second set the birds were never seen again, but in the 
following year my youngest son, whilst gathering wild fruit, came 
upon another nest (and set of eggs far advanced in incubation and 
which hatched out two days later) only a few yards from the site 
of the first one of the year previous, and I was thus luckily enabled to 
see and note that these eggs were almost counterparts of the others. 
I mention this case of the birds returning to the old site, as well as 
