64 



THE OOLOGIST. 



The Oologist. 



A Montlily Publication Devoted to 



OOLOGY, ORNITHOLOGy AND 

 TAXIDERMY. 



FRANK H. LATTIN, Editor and Publisher, 

 ALBION, N. Y. 



Correspon'Seiice and Items of Interest to the 

 student ot Birds, their Nests and Eggs, solicited 

 from all. 



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Albion, Orleans Co. , N. Y. 



Nesting" of the American Dipper. 



The Dipper, or as the Mexicans call it, 

 "■OalUnitacle la agua''' literally "little 

 chicken of the water" is one of the com- 

 monest birds of Northern New Mexico, 

 from 6,000 feet up to timber line, breed- 

 ing most commonly at 7,000 feet. 



Here at Porvenir, at an altitude of 

 7,400, in the midst of thick pine forests 

 and mountain streams is an ideal place 

 for the Dippers, a pair of which can be 

 found every quarter of a mile. When 



I lirst came out here in February the- 

 Dipper could be seen at every open 

 place along the streams, but as soon as 

 the ice had all broken up, by the first of 

 March, the birds began to pair off and 

 commence looking out for suitable 

 nesting sites. 



On April 13th I found my first nest, 

 only a few pieces of raud and moss on a 

 ledge of rock, three feet over a regular 

 torrent rushing around the corner 

 of a huge boulder. The old nest was 

 about twenty feet to the left of the new 

 one much higher up. On the 14th the 

 foundation was completed and the 

 walls and roof were entirely finished on 

 the night ot the 17th. The 18th the 

 lining was begun and not finished until 

 the 23rd, when nothing was done to the 

 nest until the first egg was laid on the 

 29th. When at work on the nest the 

 male always kept watch, the female 

 flying about a hundred feet for ma- 

 terial. I never saw the male assist in 

 any way whatever. On the morning of 

 May 3rd I collected the set of five eggs 

 and nest, the birds being nowhere in 

 sight. The nest was composed of mud 

 and moss, lined with dry pine needles, 

 grass, and the eggs resting on a bed of 

 dry oak leaves. The nest measures 18 

 inches long, 9 high and six and a half in 

 width, the roof being over an inch in 

 thickness. In the afternoon of the 3rd 

 while walking further up the canon I 

 found another nest almost inaccessible, 

 being 9 feet over the water on a ledge. 

 The stream was about 12 feet wide and 

 six deep and a huge rock rose seven 

 feet out of the water right opposite the 

 nest, and about nine feet from it. I 

 felled a pine tree near by and rested 

 one end on the boulder and the other 

 on the ledge, a few inches from the 

 nesit, and by careful balancing secured 

 the set of five all right. Both sets were 

 perfectly fresh, and measured as fol- 

 lows. Set I. .97X.68. .9?x.69, .98x.70, 

 .96X.68, .96X.68. Set II. l.OOx.74, l.OOx- 

 .71, 1.02X.76. l.OOx.75, .98x 70. 



Walton 1. Mitchell, 

 Porvenir, New Mexico. 



