July, 1912 
PRESENT STATUS OF THE COLORADO CIIECK-LLST OF BIRDS 
l,=il 
Planesticus migratorius. Omitted by Sclater, who considers all Colorado 
robins as propinquus. It is undoubtedly true that all the breeding robins of 
Colorado are this form, yet a specimen taken x\pril 13, 1912, at Crook, Colo- 
rado, and sent to the Ihological Survey, proves to be the eastern form, which, 
therefore, is to be retained in the State list (Condor, xiv, 1912, 15-1). 
In addition to the species named above, there are several more new birds for 
Colorado that were not included in either list. 
Anas rubripes. The black duck has had a curious history in Colorado 
ornithology. Originally entered in the list by Ridgway in 1874 based on a spec- 
imen taken by Aiken, its position was unquestioned until in 1900 Cooke haz- 
arded the guess, on geographical grounds, that the Colorado birds woul 1 prove 
to be Anas fiilvigitla maculosa. A specimen taken November 6, 1907, near 
Loveland, and now in the Natural History Museum at Denver, is this form 
(.■\uk, xx\iii, 1911, 490). But, nevertheless. Anas rubripes must also be re- 
tained in the list, for as already recorded (Auk xxvii, 1910, 451), a black 
duck taken about November 13, 1904, at Loveland has been identified at the 
Biological Survey as rubripes. 
Florida caerulea. One was taken September 14, 1910, l)y E. P. WHlker 
at Montrose. 
lonornis martinica. One taken June 17, 1911, by Wh F. Doertcnbach at 
Florence. 
Tryngites subruficollis. Taken at Barr August 25 and SejAember 4, 1910, 
by L. J. Hersey (Auk, xxviii, 1911, 490). 
Calcarius lapponicus lapponicus. The original lists of Colorado birds 
contained this form, which was later changed to Calcarius lapponicus alascensis, 
which is the common bird of the state. It will be necessary now to restore 
lapponicus to the list, for a specimen of the eastern form was taken Deceml:)er 
28. 1909, at Barr by L. J. Hersey, and has been identified by Oberholser ( Condor, 
XIV, 1912, 108). 
Telmatodytes palustris iliacus. As already recorded by Betts (Auk 
xxx’iii, 1911, 118), a specimen of this form was taken October 10, 1910, at 
Boulder, and one taken at Skinner’s, El Paso County, January 15, 1908, is 
considered by Oberholser to belong to this form. 
Ixoreus naevius. The same observer has recorded ( Auk .xxvii, 1910, 218) 
a specimen seen at Boulder December 5, 1909. 
Hylocichla guttata sequoiensis. A lot of hermit thrushes sent by L. J. 
I lersey to the Biological Survey for identification contain two specimens of 
this form taken at Granby October 7, and at Holly May 16, 1911. It is therefore 
added to the Colorado list as a rare migrant, both spring and fall (Condor xiv, 
1912, 108). 
SUMM.VRY 
The Sclater (1912) list of Colorado birds contains 395 species. From the 
list are to he withdrawn as more or less doubtful seven species — Phalacnoptilus 
nuttalh nitidus, Otocons alpcstris enthymia, Agclaius phooiiccus, Asfragalinus 
psaltria arizonac, Asfragalinus psaltria nie.ricanus, Lo.via curz'irosfra stricklandi, 
and Profonotaria eifrea — leaving 388 species. To these are to be added fifteen 
s])ecie.s — Anas rubripes, Florida cacrulca, lonornis martinica, Phalaropus fuli- 
carius, Tryngites subruficollis, Aegialitis mcloda, Otocoris alpcstris praticola, 
Agelaius phooiiccus ncutralis, Calcarius lapponicus lapponicus, Jitiico hyemalis 
oreganus, Junco hyemalis moiitanus, Telmatodytes palustris iliacus, I.vorcus 
