Hundreds of seasonal occurrence bird checklists for state, federal, and private management areas, nature preserves, and other areas of special interest in the United States.

Large number of articles with detailed information about United States birds.

Introduction to Eastern Bluebirds and their habitat requirements from the U.S. Department of Agriculture.

Plans for building Nest Structures, Feeders, and Photo Blinds for North Dakota Wildlife. Has plans for a wide range of species.