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Share your observations

Share your observations of plants or non-game animals with the Natural Heritage Inventory.

Rare animals
Find rare and non-game animals.
Rare plants
Learn about plants on the Natural Heritage Working List.
Rare lichens
Discover Wisconsin's lichens.
Natural communities
Explore Wisconsin's natural communities.
Other features
Discover unique resources.
Eagle license plate

Help care for rare plants and animals by ordering an Endangered Resources plate.

Contact information
For information on Wisconsin's rare animals, contact:
Rich Staffen
Conservation Biologist

Bird Rookery (Bird Rookery)



A bird rookery is an area where more than one pair of birds nest in a group. The number of nests can vary from just a few to hundreds and can include one to many different species of birds. Sites can include rare and non-rare species. The breeding time will vary based on the species present at the site. Rookeries are typically located in inaccessable locations including forests, shrub communities, wetlands adjacent to water (lakes, rivers or streams), and islands. These sites are important as large numbers of breeding individuals can be found in a single place.

State status

Status and Natural Heritage Inventory documented occurrences in Wisconsin

The table below provides information about the protected status - both state and federal - and the rank (S and G Ranks) for Bird Rookery (Bird Rookery). See the Working List Key for more information about abbreviations. Counties shaded blue have documented occurrences for this species in the Wisconsin Natural Heritage Inventory database. The map is provided as a general reference of where occurrences of this species meet NHI data standards and is not meant as a comprehensive map of all observations.

Note: Species recently added to the NHI Working List may temporarily have blank occurrence maps.

Documented locations of Bird Rookery in the Natural Heritage Inventory Database as of July 2015.
Summary Information
State StatusSC
Federal Status in Wisconsinnone
State RankSU
Global RankG5
Tracked by NHIY

Species guidance

A guidance document is not available at this time. Use the information from the other tabs and contact local biologists, as needed, to develop management and avoidance strategies.

Other resources

Links to additional Bird Rookery information

Other links related to miscellaneous elements



Bird Rookery

Great Blue Heron Rookery.

Photo © Gary Zahm.

Last revised: Friday, March 09, 2018