ii4 FIELD MUSEUM OF NATURAL HISTORY ORNITHOLOGY, VOL. I. 



males, two immature males, and six females. Evidently the nature 

 of the country has little or no effect on the winter distribution of this 

 oriole for the tierra caliente and the dry highlands, at least up to 4,000 

 feet, were alike inhabited by it. The only sign of moult in the entire 

 series is on the head of an adult male taken March 3ist. Iris dark 

 brown. 



189. Icterus pectoralis (Wagler). 



This species was found only at Patulul, where one adult male and 

 three immature males were secured. Iris dark brown. 



190. Icterus gularis (Wagler). 



The small series of three specimens of this fine oriole presents so 

 much individual variation that it is regrettable that it is not much 

 larger. All are fully adult. The differences may be tabulated as 

 follows : 



All are in unabraded plumage. The Mazatenango specimen has its 

 bill as long as those from El Rancho, but it has less depth at the base 

 by somewhat more than a millimeter. The female is by far the richest 

 colored of the lot. At El Rancho this species was feeding on the 

 rose-red fruits of the tree cactus (Cereus}. Iris dark brown. 



191. Icterus giraudii Cassin. 



Two specimens, one from Lake Atitlan and one from Tecpam. 

 Others were seen among some scattered pines on the way between 

 the above mentioned points. It appears to belong to the upland 

 region. 



192. Icterus sclateri Cassin. 



Five examples of this variable species were taken at El Rancho. 

 An adult male has the scapulars and interscapulars solid black; and 

 an immature male has only narrow orange edgings to its otherwise 

 black interscapulars. The females, all immature, have the golden 

 edgings of the interscapulars broader, producing a striped half-and- 

 half appearance. This series of skins, when compared with others 

 in similar plumage from* Nicaragua and Oaxaca, has the back de- 

 cidedly less spotted than either; the coloration of the Guatemala 



