Familiar species, common plants, and natural phenomena are introduced in these beautifully illustrated guides to nature and the outdoors. Printed on laminated, water-resistant paper in a folded format, Pocket Naturalist?Guides are highly durable for use in the field as each title provides a portable reference to a variety of mammals, birds, reptiles, amphibians, fishes, butterflies, and insects. Nature enthusiasts, from the beginner to the seasoned explorer, will relish the abundance of detailed information packed within these handheld guides. This pocket-sized guide highlights the invasive species that threaten ecosystems and have a damaging impact on the lives of native North American plants and animals. This beautifully illustrated guide highlights more than 90 of the most destructive species of invasive birds, mammals, reptiles, amphibians, insects, and plants, while the text highlights field marks, methods of introduction, and the latest attempts of control.