2ii Pasadena Academy of Sciences. Publication It. 



158 — ^jo. Calypte costce (Bourc). 



Costa's Hummiogbird. 



Common summer resident in the mesa and foothill regions, though 

 ranging from the lowlands to the higher mountains during migration. 

 Arrives about the middle of April. My earliest and latest records are, 

 respectively, March 21 ('96) and Sept. 26 ('96). Nests are, as a rule, 

 found out in the barren washes or on the dry hill-sides, far from water. 

 The breeding season extends through May and the early part of June. 

 My earliest set was of two fresh eggs, taken near Pasadena, April 21 

 ('97), and the latest set, of two slightly incubated eggs, taken June 

 28 ('94), in the same locality. 

 159 — 4.JI. Calypte anna (Less.). 



Aooa's Hunjn^ingbird. 



Common throughout the year from the lowlands to the foothill re- 

 gions, and in July up to 8500 feet in the mountains. Like all the 

 hummingbirds this species follows the flowers, and its local presence or 

 absence is governed by their abundance or scarcity. Thus, in August 

 and September hundreds of Anna's Hummers are to be found over the 

 stubble fields and sunflower patches, attracted by the flowers of the 

 "tar-weed." During the winter months they are found in profusion 

 about the blossoming eucalyptus trees. In January and February, 

 when the weather is mild, they appear high on the mountai"h sides 

 among the flowering manzanitas; and in March and April, in the blos- 

 soming orange groves in the valley, and about the currant bushes on 

 the hill-sides. The Anna's Hummingbird is our only species breeding 

 before the last of April. It nests numerously through February and 

 March, and sets may be looked for from January to May. A. I. Mc- 

 Cormick took a set of two eggs, considerably incubated, on Dec. 21 

 ('95); and the same ob-server noted a nest and eggs in the middle of 

 July ('97); both near Los Angeles. 

 160— /jj. Selasphorus rufus (Gmel.). 



F^ufous Hummingbird. 



Very abundant, especially in the blossoming orange groves, during 

 the spring migrations in April. Apparently entirely absent in mid- 

 winter. I have noted it at greater or less intervals from Feb. 20 ('96) 

 till Oct. 5 ('97), during which time this hummer is evidently found 

 somewhere in the county in varying numbers. Although the prob- 

 abilities are that a few breed in the higher mountains where I have 

 taken adults and juveniles in July, I know of no authentic nesting 

 records, notwithstanding that many eggs purporting to be of this spe- 

 cies have been sent from this county. I have never noted this hum- 

 mer, from April 29 until August 16, below 5000 feet, and it is doubt- 

 ful if any breed south of the San Gabriel ranges. 

 161 — 424. Selasphorus alleni Hensh. 



Alleo's Hummiogbird. 



A tolerably common spring migrant, occurring along with the 

 Rufous Hummer in the latter part of March and April. 

 162 — 4^6. Stellula calliope Gould. 



Calliope Hummingbird. 



Common summer resident above 5000 feet in the mountains. I 



