30 



summer. Two had disappeared, but one was still there at 

 least as late as October 7. 



Mr. Hix reported a male and two female Blue-winged Teal 

 {Querquedula discors) at Long Beach, L. I., September 10. 



Mr. Rogers described a census he had taken of breeding 

 birds within four miles of Crosswicks, N. J., June 3-11, 1916. 

 The idea was to spend the morning hours at the height of the 

 nesting season in covering most of the area by a carefully 

 mapped-out series of routes, keeping count as accurately as 

 possible of the number of pairs noted of each species. While 

 the resulting totals of course did not include all the birds 

 along the routes taken, to say nothing of all those in the area, 

 it was believed that the figures obtained were sufficient to 

 indicate closely the relative abundance of the various species 

 and to serve as a basis for comparison with a future census over 

 the same ground or with any similar one from some other part 

 of the country. The single pair of Baltimore Orioles (Icterus 

 galbula) observed indicated a decrease from the numbers the 

 speaker had found about Crosswicks in previous years; the 

 seven scattered pairs of Bobolinks (Dolichonyx oryzivorus) 

 were apparently the first ever known to nest in New Jersey 

 south of Princeton Junction. Two newly-hatched Mourning 

 Doves (Zenaidura macroura caroUnensis) were found to have 

 an egg-tooth on each mandible instead of just the one on the 

 upper customary among birds. (See No. 44060, collection 

 Jonathan Dwight.) 



Mr. Chapin remarked that the Honeyguides (Indicatoridce) 

 had on each mandible an egg-tooth much longer than those of 

 other birds, and hooked. 



Mr. Griscom spoke of a census of breeding birds recently 

 taken on the Cornell University campus, which showed almost 

 identical numbers in two successive years. 



Mr. Cleaves brought up the subject of bigamy in House 

 Wrens {Troglodytes a. aedon), giving instances from his ob- 

 servations during the past summer. Others present had 

 noticed the same thing, and agreed that it was not infrequent, 

 but by no means the rule. 



October 24, 1916. — The President in the chair. Thirteen 



