I have purchased and used in the field at least two birding guides in the Falcon series (Birding Minnesota and Birding Texas) and found them the glitzier cousins of the ABA/Lane guides, geared towards more casual or less experienced birders. The latest title in the series, Hugh Kingery’s Birding Colorado, fits the mold perfectly. Novice and intermediate birders should be thrilled by it; more serious target-oriented birders will find it an excellent basic reference but not a superlative addition to the canon.