Blue grouse nesting parameters and habitat associations in northeastern Oregon

We examined Blue Grouse (Dendragapus obscurus) nesting characteristics in n ortheastern Oregon to identify relationships between hen age and nesting pa rameters and to ascertain habitat characteristics related to successful nes ts. Adult and yearling hens exhibited no differences in clutch size, percen tage of eggs hatched, nesting success, or hatch dates. Among nests located under logs, 100% (n = 10) hatched greater than or equal to 1 egg, whereas 5 8% (n = 10) of 17 nests not under logs hatched greater than or equal to 1 e gg.