A Prickly Situation

Fun shots of Cactus Wren nestbuilding in a cholla cactus (Cylindropuntia genus, particular species unknown but perhaps Cylindropuntia tunicata a.k.a. Sheathed Cholla), at Sweetwater Preserve in the Tucson Mountains just west of Tucson, AZ:

Home sweet home
Gathering nesting materials
Cactus Wren @ cactus I
Gathering nesting material II
Entering the nest
Cactus Wren @ cactus II
Quite a tail
Cactus Wren @ cactus III
Happy homemaker
Gathering nesting material III
At home w/ the cactus
Cactus Wren @ cactus IV
Gathering nesting material IV
Prickly flight
Another view of gathering nesting material
Flight @ nest II
A farewell to wren