388 Moustey, Subsequent Nestings. les 
two. After the taking of the third set the birds were not seen again, 
but in the following year a pair were noticed in the vicinity, but I 
failed to find their nest. The next year (1916) however, they were 
there again, and this time I found the nest and set of eggs (heavily 
incubated) which were very similar to those of 1914. 
The Prairie Horned Lark (Otocoris alpestris praticola) is another 
interesting species, and the two nests under notice together with 
some others have been fully dealt with in my paper on the breeding 
of the species at Hatley (see Auk, Vol. 33, 1916, pp. 281-286). 
They were both on the ground in a large field near my house and 
were exactly like one another in construction, both having the 
“paving” peculiarity, to draw attention to which the above article 
was specially written. The eggs were all alike as regards shape 
and markings, which latter consisted of very minute specks over 
the entire surface, with a somewhat pronounced zone at the larger 
end, the second set however being smaller than the first as regards 
dimensions, but both containing an equal number of eggs viz.: 
four. After taking the second set the birds forsook this particular 
field (much to my disappointment as I had hoped to still further 
corroborate the period at which the “ paving” to the nests is added) 
but some were seen about the district until June 22. The following 
year (1916) however another nest and set of eggs was found in this 
same field by my youngest son on May 30, this nest also exhibiting 
the aforementioned peculiarity, there being no less than 46 small 
pieces of cowchips, stones and lichen, making up the “paving” 
or banking, which fortunately with the nest had not been disturbed 
in any way, although the eggs had been abstracted by someone, 
before I had an opportunity of seeing them a few days after. 
The Downy Woodpecker (Dryobates pubescens medianus) presents 
nothing specially interesting, the first nest being in a dead elm tree 
eighteen feet above the ground, the entrance hole being one inch 
in diameter, the extreme depth eight inches and the average width 
two and one half inches, the second one being almost identical, 
but only six feet above the ground, in a dead poplar stub. The 
eggs in both cases are all practically alike, the second set being 
just a shade less in thickness. No further nest could be located 
after the second set was taken, but the elm tree was made use of 
again the following year, a new hole being excavated on the oppo- 
