iSSs-] Scott on the Breeding Habits of Arizona Birds. 2>4-5 



Nest No. i. June 17, 1884. Built in an oak, twenty-five feet 

 from the ground. Contained three fresh eggs. It was saddled 

 on a thick limb near where it forked, and about ten feet from the 

 main stem of the tree. It is composed mainly of the stems of a 

 soft flowering weed abundant hereabout, and the flowers, which 

 are worked into and form a part of the structure. Also some 

 strips of fine bark, and various dried grasses, small twigs, and 

 much plant down, help to make up the walls and bottom. These 

 are thick and very soft, and the materials composing them are not 

 woven at all, but simply laid together with some little attempt at 

 fastening them with thread-like grasses. Externally the nest is 

 two inches deep, and the external diameter is a little less than 

 four inches. The greatest depth inside is one inch, and the di- 

 ameter of the interior at the rim of the nest is two and three- 

 fourths inches. It is not at all an elegant structui-e, though 

 peculiar, and is very fragile, being quite as delicate and soft as 

 that of Trochilus alexaitdri. 



The eggs, three in number, are greenish white in ground color, 

 but so completely flecked all over with faint lilac spots as to seem 

 at a very short distance of that general shade. Again, all over 

 the lilac spotting, are very strongly defined spots of deep umber 

 brown, almost black. These spots vary much in size, from that 

 of a pin-point to as large as five one-hundredths of an inch in 

 diameter. They are almost as various in shape as in size, and 

 are dotted all over the egg in a rather regular manner. No. 1 

 measures .90X.63 inches; No. 2, .84X.64 inches, and the other 

 is about like No. 2, but is unfortunately broken. 



Nest No. 2. June 17, 1884. Mesquite, twenty feet from ground. 

 Contained two young just hatched and an addled egg. Is a very 

 similar structure in general appearance to the last, but the walls 

 are much more compact, and the materials composing the whole 

 are packed much more firmly together, being evidently secured to- 

 gether and plastered with saliva, especially on the rim of the nest 

 and inside. The nest is saddled on a large limb, at least two 

 inches in diameter, and is additionally supported by a twig that is 

 about a third of an inch thick, and which, branching from the 

 limb referred to at a point near the nest, passes through the wall 

 on one side of the nest and is firmly built into the structure. The 

 external diameter of the nest is four inches, and the external depth 

 rather less than two inches. The internal diameter is two and 



