iSSs-J Drew on the Vertical Range of Birds in Colorado. I 7 



Upper Limit of range in — Breeds — 



Spring Summer 



41. Eremophila alpestris chrysolsema 



42. Tyrannus carol inensis 



43. Tyrannus verticalis 



44. Tyrannus vociferans 



45. Myiarchus cinerascens 



46. Sayornis sayi 



47. Contopus borealis 



48. Contopus richardsoni 



49. Empidonax ditficilis 



50. Empidonax pusillus 



51. Empidonax minimus 



52. Empidonax hammondi 



53. Empidonax obscurus 



54. Trochilus alexandri (Ridgivay) 



55. Selasphorus platycercus 



56. Selasphorus rufus 



57. Cypselus saxatilis 



5S. Cypseloides niger borealis 



59. Phalrenoptila nuttalli 



60. Chordeiles popetue henryi 



61. Picus villosus harrisi 



62. Picus pubescens gairdneri 



63. Picoides tridactylis dorsalis 



64. Sphyrapicus varius (Ridg7vay) 



65. Sphyrapicus varius nuclialis 



66. hphyrapicus thyroideus 



67. Centurus carolinus {Ridgivay) 

 6S. Melanerpes erythrocephalus 



69. Melanerpes toiquatus 



70. Colaptes auratus mexicanus 



71. Ceryle alcyon 



72. Geococcyx californiainus 



73. Coccyzus americanus 



74. Conurus carolinensis 



75. Asio americanus 



76. Scops asio maxwelloe 



77. Scops flammeolus 



7S. Bubo virginianus arcticus 



79. Speotyto cunicularia hypogica 



So. Hierofalco mexicanus polyagrus 



St. Falco peregrin us naevius 



52. ^Esalon columbarius 



53. ^Esalon richardsoni 



54. Tinnunculus sparverius 



55. Pandion haliaetus carolinensis 



56. Circus hudsonius 



57. Accipiter cooperi 



88. Accipiter fuscus 



89. Astur atricapillus striatulus 



90. Buteo borealis calurus 



91. Buteo cooperi (Ridgzvay) 



92. Buteo swainsoni 



93. Arcliibuteo lagopus sancti-johannis 



94. Archibuteo ferrugineus 



95. Aquila chrysaetus canadensis 



96. Haliaetus leucocephalus 



97. Cathartes aura 

 9S. Columba fasciata 



99. Zenaidura carolinensis 



200. Melopelia leucoptcra 



201. Meleagris gallopavo americana 



202. Canace obscura 



203. Bonasa umbella umbelloides 



204. Lag-opus leucurus 



205. Cupidonia cupido 



206. Pedicecetes phasianellus columbianus 



207. Centrocercus urophasianus 

 20S. A idea herodias 

 2oq. Garzetta candidissima 



7500 

 6000 

 6000! 



6000 

 6000 

 6000 

 6000 



6000 

 6000 



6000 



5000 

 6000 



6000 



5000 



6-10000 



6-10000 



1 0000 



Sooo 

 6000 



6000 



6000 



6-10000 



9500 



t 

 6000 



1 1000 



X 



6000 



6000 

 6-IOOO0 



6000 

 6000 



9500 



9500 



IIOOO 



6-IO0OO 



6000 

 6-10000 

 Sooo 

 6000 

 7000 

 6000 



12000 

 Sooo 

 7000 



7000 

 6000 

 7000 

 7000 

 7000 

 8000 

 12000 

 11500 

 1 0000 

 Sooo 



Sooo 

 10500 



6000 

 13000 

 15000 



14000 

 8000 

 12000 



IIOOO 

 12000 

 I2000 



12000 

 1 0O0O 



IIOOO 

 SOOO 



I20OO 

 9500 

 5OOO 



Sooo 



t 



IIOOO 



6000 

 Sooo 



1 1500 



X 



1 0000 



1 0000 



9500 



IIOOO 



1 1500 



9000 

 1 0000 

 9000 

 9000 



1 0000 



12000 



10000 

 Sooo 



IIOOO 



1 1500 

 7000 



1 1500 

 7000 



1350° 



5000 

 7000 



9500 

 5000 



Winter from 



I OOOO 

 I OOOO 

 I OOOO 



Sooo 



9000 



14000 



9500 



1 0000 



1 0000 



10000 



9500 



7000 



5000 



7000 



t 



I OOOO 



5000 



13000 



X 



I OOOO 



13000 

 10500 



13s 00 



13500 



13000 

 14000 



IIOOO 



8000 

 12000 



12500 



12000 

 5000 

 7000 



5-10000 



5-10000 



10000 



4-7000 

 3-Sooo 



5000 



t 



*-IOOOO 



5000 



*-IIO00 



X 



9500 



*-IOO0O 



6000 

 6000 



*-IIO00 



7-10000 

 S- 1 2000 



-7000 

 -7000 



Plains 



4000 

 Plains 



7000 

 Plains 



7500 



4000 

 6500 

 6000 



I OOOO 



Plains 



4500 

 4500 

 Sooo 



4000 

 5000 



Plains 



5000 



Plains 



4000 



Plains 

 4000 



4000 

 Plains 



6000 



Plains 



5000 



Plains 



6000 



1 1500 

 Plains 



7000 

 6000 

 7000 

 7000 

 7000 

 Sooo 

 12000 



IIOOO 

 I OOOO 



Sooo 



8000 

 10500 

 6000 



IIOOO 



10500 

 12500 

 12000 

 Sooo 



IIOOO? 



1 1500 



1 1500 

 12000 



12000 

 10000 



IOOOO 



8000 

 12000 



9500 

 5000 



Sooo 



IIOOO 



6000 

 8000 



1 1500 



9000 



IOOOO 

 IOOOO 



1 1500 



9000 



IOOOO 



9000 

 9000 



IOOOO 



11500 



IOOOO? 



12500 



Sooo 



IOOOO 



7000 

 1 1500 

 7000 



13500 



5000 

 7000 



9500 

 5000 



* Plains 



% Resident and breeds up to 9000 feet. 



t See B. N. O. C, Vol. II, No. 2, p. 50. 

 § See American Naturalist, Vol. X, p. 430. 



y 



