We examined Blue Grouse (Dendragapus obscurus) nesting characteristics in northeastern Oregon to identify relationships between hen age and nesting parameters and to ascertain habitat charactersicts related to successful nests. Adult and yearling hens exhibited no differences in clutch size, percentage of eggs hatched, nesting success, or hatch dates. Among nests located under logs, 100% (n = 10) hatched ≥1 egg, whereas 58% (n = 10) of 17 nests not under logs hatched ≥1 egg.
Pelren, Eric C. and Crawford, John A.
"Blue Grouse nesting parameters and habitat associations in northeastern Oregon,"
Great Basin Naturalist: Vol. 59
, Article 9.
Available at: http://scholarsarchive.byu.edu/gbn/vol59/iss4/9