Twentyone Lake, Valentine National Wildlife Refuge

Lake name:
Twentyone Lake, Valentine National Wildlife Refuge
Location:
Nebraska
Latitude:
42.4687494
Longitude:
-100.454326
Basin type:
non-reservoir
Management agency:
U.S. Fish and Wildlife Service
Region associations:
Valentine NWR; Sandhill marshes
Comments:
Twentyone Lake is in a complex of nearby lakes within Valentine NWR.

Summary of Surveys (1)

Survey Citation:
Ducey, J.E. 2022. Valentine, Nebraska. Archive of the Great American Sandhills. April 14, 2022

  • Time period
    2019
  • Source
    Database
  • Both Western and Clarks?
    N
Count Type Range Max Year
Max Adults 1 to 100 presence 2019
Most Recent Adults 1 to 100 presence 2019
Max Nests 1 to 100 presence 2019
Most Recent Nests 1 to 100 presence 2019
Max Chicks N/A N/A N/A
Most Recent Chicks N/A N/A N/A

Comments:

Nebraska Sandhills Lakes with Western Grebe breeding records from database owned by James E. Ducey, forwarded by Ross Silcock. Credit as James E. Ducey, Valentine, Nebraska. Archive of the Great American Sandhills. April 14, 2022 is the publication date. No other details provided. Breeding record does not specify evidence (nests and/or chicks so entered as probable nests) and then Ross Silcock updated the list with years, some from eBird, and states that presence at Sandhills lakes in June to July is probable as breeding. There may have been previous years of observations to comprise Ducey's list but there is no information on that. Valentine NWR was visited multiple times in a year.

Sources of Information