Aquatic animals; Aquatic environments; Biological control; Habitat conservation; Invasive species; Population control; Work of the Service;
This is a plan to prevent zebra mussels and other aquatic nuisance species from spreading westward. This document includes background on the issue, including the current and potential impacts, ecological, economic and otherwise, the spread of these...
The common loon is best known for its call and is one of the most recognizable wilderness sounds. The loon is a large bird, about 28 to 36 inches, and has a thick, pointed, black bill. In breeding plumage the loon's head and neck are black with...
This is a status assessment of the double-crested cormorant in North America as of 2001. It includes general information on the bird, biological information and area-specific population information for throughout North America.
Bird banding; Birds; Game birds; Game management; Migratory birds; Statistics;
This is the report of the results of a banding study conducted on mourning doves. The information derived from the study allows for management of the doves as a game resource.
Bird banding; Birds; Game birds; Game management; Migratory birds; Statistics;
This is the report of the results of a banding study conducted on mourning doves. The information derived from the study allows for management of the doves as a game resource.
This is a guide to altricial passerines. It has an explanation of variables used for aging birds and an explanation of methodology employed, and provides information obtained while recording the early aging of the Dusky Flycatcher, the Carolina...
A multidisciplinary education guide for grades 2-12 (with sections on "How to Adapt" for Preschool - 1st grade, home schools, youth groups, and nature centers)
The Pacific coast population of western snowy plovers breeds on coastal beaches from southern Washington to southern Baja California, Mexico. Plovers lay their eggs in shallow depressions in sandy or salty areas that generally do not have much...
