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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 Nest No. 3 May 20 completed .................................. May 21 completed building building May 22' completed building building May 23 1 egg o completed completed May 24 2 eggs 2 eggs 1 egg May 25 3 eggs ................ 2 eggs May 26 4 eggs 4 eggs 3 eggs May 27 5 eggs ................ 4 eggs May 29 5 eggs ................ 4 eggs May 30 5 eggs 5 eggs 4 eggs June 3 5 eggs 5 eggs .................. June 7 2 nestlings 5 nestlings .................. June 17 all left nest all left nest .................. Missoula, Mo?tana, January 26, 1918. Fig. 24. FEMALE REDPOLL ON THE NEST (NO. 2) IN A PAPER BIRCH SHRUB. NORTH FORK OF THE KUSKOKWIM RIVER, ALASKA; MAY 30, 1912.