Annotated List 107 
parison, that in eight instances where the first arrival 
was observed at the home box (hence undoubted 
local birds) the average date was Apr. 26; while 
the first arrivals in the neighborhood for the same 
years averaged six days earlier. 
Berwyn: 
Arrival—Apr. 16 (1908)—May 6 (1904) ; ave. 
24 yrs. Apr. 24. 
Common—Apr. 18 (1896)—May 10 (1904) ; 
ave. 21 yrs. Apr. 30. 
Departure—Sept. 15 (1899)—Nov. 14 (1903); 
ave. 20 yrs. Oct. 14. 
229. Nannus hiemalis hiemalis Winter Wren. 
Not common winter visitant; represented by record 
of from one to four individuals on most winter lists. 
Arrival—Oct. 5 (1894)—Nov. 15 (1913) ; ave. 
FLV Esc. 20. 
Departure—Apr. 11 (1890)—May 2 (1915); 
ave. 5 yrs. Apr. 25. 
230. Cistothorus  stellaris Short-billed Marsh 
Wren. Rare summer resident. Barnard considered 
it very rare, while Michener gave it as a frequent 
summer resident. Warren has observed it as a sum- 
mer resident but gives no dates, and Burn reports 
it at Oxford. 
231. Telmatodytes palustris palustris Long-billed 
Marsh Wren. Rare summer resident; frequent in 
Michener’s time. Jackson and Ladd took a set of six 
eggs from a marsh, at Lenape, June 12, 1886 (Orn. 
and QOol., xii, 24). 
232. Certhia familiaris familiaris Brown Creep- 
er. Tolerable common winter visitant. 
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