V0l i8£ VI ] Chapman, The Seaside Sparrows. I I 



Range. — Coast of Gulf States, breeding from Grand Isle, La., west- 

 ward, probably to northeastern Texas, southward in winter to Corpus 

 Christi, Texas, and Tarpon Springs, Florida. 1 



In the appended table a comparison of the diagnostic charac- 

 ters of all the forms of the restricted maritimus group in fresh 

 plumage is given. As before remarked, abrasion so alters a 

 breeding bird's appearance that in some cases badly worn speci- 

 mens are practically unidentifiable. Of the 17 breeding birds 

 collected by Dr. Fisher on Grand Isle and by Mr. Mcllhenny on 

 and near Averys Island, all but four are 'more or less suffused 

 with pale ochraceous on the breast and flanks, the most diagnos- 

 tic character presented by fisheri, and about half the series are 

 still more or less distinctly streaked with black below. It is in 

 unworn plumage, however, that the differential characters of 

 these birds are most evident, and it is on specimens in this con- 

 dition that the appended table comparing the four forms of the 

 restricted maritimus group is based. 



Table of diagnostic characters of Seaside Sparrows of the 

 Ammodramus maritimus group. 



Crown. 



Maritimus. — Sides olive with occasionally black shaft-streaks, median 



line well defined, bluish gray. 

 Peninsulce. — Sides dull black, margined with raw umber, median line 



ill defined, bluish gray. 

 Macgillivraii. — Sides deep black, margined with mummy brown, median 



line ill defined, bluish gray. 

 Fisheri. — Sides deep black, margined with mummy brown, median line 



ill defined, bluish gray. 2 



Nape. 



Maritimus. — Pale greenish olive. 

 Peninsula:. — Greenish olive. 

 Macgillivraii. — Tawny olive. 

 Fisheri. — Mummy brown. 



1 No. 43472, 9, Tarpon Springs, Nov. 2, 1891. Coll. Wm. Brewster, is 

 clearly referable to fisheri. 



2 Ridgway's ' Nomenclature of Colors ' is used throughout this paper. 



