Knox Pond east side, Malheur National Wildlife Refuge

Lake name:
Knox Pond east side, Malheur National Wildlife Refuge
Location:
Oregon
Latitude:
42.8855426
Longitude:
-118.862283
Basin type:
non-reservoir
Management agency:
U.S. Fish and Wildlife Service
Region associations:
Blitzen Valley; Malheur National Wildlife Refuge
Comments:
East side of the pond, in the Blitzen Valley of Malheur NWR.

Summary of Surveys (2)

Survey Citation:
Ivey, G. 2006. Atlases of waterbird nesting sites for California, Idaho, Oregon and Washington. Region 1 Non Game Program, U.S. Fish and Wildlife Service, Portland, Oregon.

  • Type
    shore; air
  • Time period
    1980, 24 May 1988
  • Source
    Database
  • Both Western and Clarks?
    N
Count Type Range Max Year
Max Adults 1 to 100 10 1980
Most Recent Adults 1 to 100 10 1988
Max Nests 1 to 100 5 1988
Most Recent Nests 1 to 100 5 1988
Max Chicks N/A N/A N/A
Most Recent Chicks N/A N/A N/A

Comments:

For 1980, entered the estimated number of breeding birds based on pair numbers the observer adjusted by the assumed visibility factor. Actual count in 1980 is 4 birds. For 1988, observer rounded from highest nest count number.

Survey Citation:
Ivey, G., Western grebe colony locations and nest estimates, Harney Basin, Oregon.

  • Time period
    1980, 1989
  • Source
    Database
  • Both Western and Clarks?
    N
Count Type Range Max Year
Max Adults 1 to 100 presence 1980
Most Recent Adults 1 to 100 presence 1989
Max Nests 1 to 100 10 1980
Most Recent Nests 1 to 100 7 1989
Max Chicks N/A N/A N/A
Most Recent Chicks N/A N/A N/A

Comments:

Excel spreadsheet of Western grebe colony locations and nest estimates in Harney Basin during Ivey's time as a biologist at Malheur NWR. Adult count numbers not provided, entered as "presence".

Sources of Information