Found tail feather. Coin 2.4cm diameter. South of Hereford Road bridge in the San Pedro Riparian National Conservation Area.
I regularly see red-tailed hawks at this prairie, so that is my first choice for an ID but can't be positive.
M2L156E89A1B265-E0A0B0-E0A0B0-E0A0B0-E0A0B0-C89,1