550 OnNITIIOLOGY. 



120, i jut:; Cami) 12, An-iist 1, ISfiT. 1.{:J_20A— 0,-^— .-)3_1^_J_44— :5,\. 

 Same remarks. 



241, <J (ifl.; Wi'st Ilmnholdt Mtmiitaiiis (Camp 10), October 8, 18C7. l.i— 21 — 

 (i.i— ."ij-Sj — U— }| — 4i — 2^. Bill, slaUvblack, deeper termiually; iris, deep cbestnut; 

 naked eyelids, tarsi and toes, line i)ale lilaceousblue. 



;5J7, (J ad.; Truckee Reservation, December 18,1807. 13i— 21— C^— jg— 1}^— 

 1 — 5 — 2J. Iris, deep clierry-red. 



30;5, S ad.; Truckee Keservation, December 19, 1807, 14—21^ — 7_5|_ig_i_ 

 5 — 2J. Same remarks. 



374, (J ad.; Truckee Reservation, December 21, 1867. 13§— 21 J— OJ — of. Same 

 remarks. 



301, <J ad.; Washoe Valley, January 3, 1808. 134— 21— Oi|— 5§. Same re- 

 marks. 



303, ? ad.; Wasboe Valley, January 4, 1868. 123—20^— Og—,5fj. 



401, S ad.; Carson City, March 28, 1808. 1.3^ — 22— 0{|— oj. 



402, S ad.; same locality aud date. 13^ — 22— OJ — of. 



481, 9 ad.; same locality, March 30, 1868. 13g— 21J — O4— 5|^. 



730, eggs (5); Truckee Reservation, May 1 7, 1808. Excavation in a small willow, 

 on bank of the river. 



134."., S juv.; Parley's Park, Utah, June 28, 1869. 



142S, Sjuv.; Parley's Park, Utah, July 10, 1809. 12^201. Bill, slate-black; 

 iris, bister; tarsi aud toes, light ashy-blue. 



COLAPTES HYBRTDUS.' 

 "Hybrid" Flirkcr. 



Colaptes ayresii, Audubon, Birds Am., VII, 1843, 348, pi. 494. 

 Colaptes hybridiix, Baikd, Birds N. Am., 1858, 122; Cat. N. Am. Birds, 1859, 

 No. 98a.— B. B. & R., Hist. N. Am. Birds, II, 1874, 582, pi. liv, fig. 3. 



List of specimens. 



400, i; Washoe Valley, January 4, 1868. 1.3_20J— 6^5f. 



[General appearance of typical me.vivanus, having ashy throat and scarlet 

 "moustaches," but occiput with a distinct scarlet crescent, and the red of the remiges 

 and rectrices inclining decidedly to orange.] 



' Whether the puzzling specimens included under this name are really hybrids, or 

 whether they are remnants of a generalized form from which two "incipient species" 

 have become differentiated, must long remain an open question. The latter view, how- 

 ever, seems the more rational ; and it is altogether probable that this " hybrid " series 

 is gradually losing its neutral character, through the nearer api)roach, generation by 

 gciieiaiioii, of its members to the characters of one or the other of the two specialized 

 form.s. [For a full and very sensible discussion of this subject, see Coue-s's Birds of 

 the Northwest, pp. 293, 294.1 



