70 



Grundtvig 072 Warblers of Wisconsin. [April 



Dendroeca striata (yForst.) Bd. May lo a few males arrived, 

 but no others were noticed until the i8th. The 19th and 20th a 

 few were seen; the 21st they became quite numerous, and from 

 the 23nd to the 24th they outnumbered the other species. On 

 the 25th, however, the numbers were exceeded by those of D. 

 castanea, but the flocks continued quite numerous until after the 

 37th, after which date only a single straggler was noticed, on 

 June <,. The first female arrived May 21. 



Dendroeca castanea ( Wlls.) Bd. May 18 five males of 

 this species appeared in a large flock of other Warblers. The 

 number gradually increased, and May 23 it was only exceeded 

 bv D. striata. May 25 it outnumbei-ed them all, but the day 

 following none were seen. The females first arrived May 25. 



Dendroeca pennsylvanica {L.) Bd. A small flock arrived 

 May 3, but none were noticed again until May 8, when several 

 others were seen. The number gradually increased, and May 12 

 it was only exceeded by Setophaga rtiticilla. May 14 it out- 

 numbered them all ; from this date, however, the flocks gradually 

 decreased, although many remained to breed. The first Q-g^ was 

 taken June 3. 



Dendroeca maculosa {Gm.) Bd. May 3 a single male 

 arrived. May 5 a few were found in the other flocks, but none 

 were noticed again until the 9th. A few were seen during the 

 following days, but from the 13th to the 17th none were noticed. 

 On the iSth, however, this Warbler rather outnumbered the 

 other species then present, and continued very numerous until 

 May 34. The last were noticed May 25. Two males, shot May 

 5, had the black of the head not continuous with that of the 

 back but plainly interrupted with clear ash. 



Dendroeca tigrina (Gm.) Bd. May 8 quite a number of 

 males arrived, scattered through the different flocks, and the next 

 day large flocks arrived, in numbers almost equaling Setophaga 

 ruticilla. The}^ remained quite numerous, and on Ma}' 12 it 

 was only outnumbered by ^\ ruticilla^ D. pennsylvanica ., and 

 H. rujicapilla. May 13, however, only a few were seen, but 

 May 14 large numbers again appeared ; afterwards only a few 

 were noticed, mostly females. May 17 and 18 none were seen, 

 and for several days only one or two were noticed, the last one, 

 May 25. The first female was seen May 9th. Several males 

 taken had spots on four pairs of tail feathers. 



