A report by the Arizona Field Ornithologists on gaps in data regarding resident bird species in Arizona. These bird information 'gaps' are being addressed by volunteers and professional wildlife personnel statewide with updates posted to the AZFO website. A rare-bird-alert update for the last week in September for Maricopa County. Bird of the episode: Belted Kingfisher. Birding hotspot: Coon Bluff. Friend of wildlife: Arizona Trail Association.