46 Bangs and Peck — Rare and New Birds from British Honduras. 



Characters. — Most like C. savannarum obscurus Nelson of the coast of 

 Vera Cruz, Mexico, but with all the characters of that form carried to a 

 still greater extreme — about as different from C. savannarum obscurus as 

 that bird is from C. savannarum passerinus. Similar to C. savannarum 

 obscurus, but smaller in all measurements; colors (sexes alike in color) 

 darker — whole upper parts with dusky greatly predominating and with 

 scarcely any rusty-brown mottling; chest, sides and flanks very dark — 

 dull tawny-ochraceous. 



MEASUREMENTS. 



Remarks. — The breeding grasshopper sparrow of British Honduras is the 

 most extreme form yet described, in point of small size and dark colora- 

 tion ; the upper parts being almost solid blackish, broken only by the 

 median crown stripe and some slight grayish edges to the feathers of the 

 bind neck and back. One skin only among the four examined has slight 

 rusty-brown markings on nape and rump. 



Coturniculus savannarum passerinus occurs in the same general region 

 in winter, an adult male having been taken in the Toledo District Decem- 

 ber 3, 1900. This specimen (No. 19,886 Bangs coll.) affords the follow- 

 ing measurements: wing, 02; tail, 45; tarsus, 19.5; exposed culmen, 11. 

 Aimophila rufescens discolor Ridg. 



In his Birds of North and Middle America, Ridgway relegates A. rufes- 

 cens discolor to the synonomy of A . rufescens rufescens, still having but 

 the original series from Segovia River, Honduras, in much abraded con- 

 dition of plumage. 



Three specimens in tine spring plumage collected in March, 1907, at 

 Ycacos Lagoon, British Honduras, are identical with the Segovia River 

 birds and differ from true .1. rufescens in smaller size — much shorter win^ r 

 and tail — heavier bill, in the color of the breast and flanks being decidedly 

 paler and less brownish, and in the sides of the head being darker, clearer 

 gray. 



AimopJiila rufescens discolor therefore lias a wide range, being now re- 

 corded from places so distant as Segovia River, Honduras, and Ycacos La- 

 goon, British Honduras, and is a subspecies well worthy of recognition. 



The three specimens give the following measurements: 



