July, 1918 



NOTES ON THE NESTING OF THE REDPOLL 



131 



edges of the nest-cups had been broken down by the weight of the growing 

 nestlings. 



A well-grown young Redpoll was collected in alders by the river on May 

 30, so these nests were not the earliest for the year, and it is possible that they 

 represent a second brood. The time required to build a nest and rear a nestful 

 of young Redpolls to the time when they leave the nest is apparently just about 

 a month. 



RECORDS OF REDPOLL NESTS 



1912 



Nest No. 1 



Nest No. 2 



May 20 

 May 21 



completed 

 completed 





building 



May 22 



completed 



building 



May 23 



1 egg 



completed 



May 24 



2 eggs 



2 eggs 



May 25 

 May 26 



3 eggs 



4 eggs 





4 eggs 



May 27 

 May 29 

 May 30 



5 eggs 

 5 eggs 

 5 eggs 







5 eggs 



June 3 



5 eggs 



5 eggs 



June 7 



2 nestlings 



5 nestlings 



June 17 



all left nest 



all left nest 



Missoula, Montana, 



January 26, 1918. 





Nest No. 3 



building 

 building 

 completed 



1 egg 



2 eggs 



3 eggs 



4 eggs 

 4 eggs 

 4 eggs 



Fig. 24. Female Redpoll on the nest (no. 2) in a paper birch 

 shrub. North Fork of the Kuskokwim River, Alaska; 

 May 30, 1912. 



