Birds Alden, Peter and John Sill, Peterson Field Guide Coloring Books - Birds, Houghton Mifflin Co., 1982. ISBN: 0-395-32521-8
Educational Insights, Birds - Pictures, Facts, and Activities, 1990. ISBN: 0-88679-819-1
Kennedy, Paul E., Audubon's Birds of America Coloring Book, Dover Publications Inc. ISBN: 0-486-23049-X
Royston, Angela, Science Nature Guides - Birds of North America, Thunder Bay Press, 1994. ISBN: 1-85028-261-7
Plants Forey, Pam, Science Nature Guides - Wild Flowers, Thunder Bay Press, 1994. ISBN: 1-85028-266-8
Mitchell, Alan, Science Nature Guides - Trees, Thunder Bay Press, 1994. ISBN: 1-85028-265-X
Taylor, Ronald J., Sagebrush Country, Mountain Press Publishing, 1992. ISBN: 0-87842-280-3
Whitson, Tom D., Weeds of the West, Pioneer of Jackson Hole, 1996. ISBN: 0-941570-13-4