RFI: Planing a Colorado Trip

[Adam Wood]

Hi, I am a birder from Texas and am new to the group. I am thinking about making a five day trip to Colorado for a few target birds and would welcome advice on when the best time to look for each species is and where my best bet to find each would be. My targets are as follows:

Greater Sage-Grouse,
Gunnison Sage-Grouse,
Dusky Grouse,
White-tailed Ptarmigan,
Boreal Owl,
Northern Saw-whet Owl, and
Black Swift

I know the Black Swift is a summer time bird and best looked for starting in June but my question is can the Sage-Grouse and Boreal Owl be reliable be gotten in June? I would assume the Sage-Grouse are most easily viewed while leking but would be off the lek by June. Or is this best done in two trips one more in April/early May for the Sage-Grouse while they are on the Lek and the Boreal Owl and the other trip in June for the Swift? Thank you to everybody in advance for your advice,

Adam Wood
Houston, Tx.
birdson...@gmail.com