Satie 
per AUIS 
A QUARTERLY JOURNAL OF 
ORNITHOLOGY. 
VOL. <Xtv. OcToBER, 1917. No. 4. 
A STUDY OF SUBSEQUENT NESTINGS AFTER THE 
LOSS OF THE FIRST! 
BY H. MOUSLEY. 
Plates XIITI-XIV. 
Ir is the byways I imagine in any science we may take up, that 
really keeps our interest in it alive. Even when out for a walk the 
main object with most people is to get off the beaten track and 
wander into the fields and lanes, and so with ornithology, the high- 
ways after a time become exhausted, and the student turns to the 
byways wherein he may find some interesting problem the solution 
of which is not to be found in any text book, but will depend upon 
his own efforts, and so it transpired that some six years ago whilst 
wandering down one of these lanes or byways so to speak of orni- 
thology, I came face to face with the following problems, no 
attempted solution of which I have so far seen in print, viz.: 
(1) How many sets of eggs will a bird lay after the loss of the 
first one. 
(2) What time will be occupied in building a new nest and laying 
another complete set of eggs. 
(3) Will the succeeding nests be in similar situations, and con- 
struction to the first one, and how far will they be from it. 
1 Read before the Nuttall Ornithological Club, March 5, 1917, by Dr. Chas. W. Townsend 
for the Author. 
381 
