Incubation and Brood Rearing by a Wild Male Mountain Quail
NOTES INCUBATION AND BROOD REARING BY A WILD MALE MOUNTAIN QUAIL DAVID J. DELEHANTY, Ecology,Evolution, and ConservationBiology Program, 1000 ValleyRoad, University of Nevada,Reno, Nevada89512 The MountainQuail (Oreortyxpictus) is amongthe mostpoorly known birds of the Americanwest. No comprehensivestudy of the species'breeding biology exists (Gutierrez 1975, 1980). This is unfortunatebecause Mountain Quail populations have declinedsignificantly in Washington(Wash. Dept. Wildlife1993), Oregon(K. Durbin,Ore. Dept. Fishand Wildlife,pers. comm.), Idaho (T. Hemker,Ida. Dept. Fish and Game, pers. comm.), and Nevada(S. Stiver,Nev. Div. Wildlife,pers. comm.). Informationon MountainQuail reproduction could benefit management efforts. Primaryaccounts of the MountainQuail providelittle informationon male and female rolesin reproduction(i.e., Coues 1874, Grinnellet al. 1918, Grinnelland Storer 1924, Bent 1932, Linsdale1936, Miller and Stebbins1964, Gutierrez 1975, 1980). Grinnell and Storer (1924:268) stated, "Females,so similarto the males in plumageas not to be distinguishableunder normalcircumstances, are not in much evidenceafter the nestingsites have been selected,"suggesting an assumptionthat primarilyfemales tend nestsand eggs. Miller and Stebbins(1964:70) noted that many male MountainQuail have incubationpatches, and they collectedone such male associatedwith a brood of one-third-grownyoung. Incubationby maleshas been documentedfor the CaliforniaQuail (Callipeplacalifornica). Scaled Quail (C. squamata)(Johnsgard 1988), and Northern Bobwhite(Colinus virginianus)(Clark 1903, Curtis et al. 1993). Males of these speciesalso brood young, as do male Gambel's Quail (Callipepla gambelii) and MontezumaQuail (Crytonyx monte- zumae)(Johnsgard 1988). Neitherincubation nor broodingby male MountainQuail has been documented,although incubation patches on malesimply this possibility (Johnsgard1973). Here, I report a caseof a wild first-yearmale MountainQuail successfullyincubating a clutch of 13 eggs and subsequentlyrearing the young unaidedby a female.
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