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Barr Lake

View on Full Map View Surveys (3) View Sources (3)

Grebe Survey Summary

  • Max Adults: 91
  • Year: 1998
  • Most Recent Adults: 9
  • Year: 2009
  • Survey Type: Shore
  • Most Common Threats Reported: Water too low; lack of/poor nesting habitat
Lake name:
Barr Lake
Location:
Colorado
HydroLAKE ID:
112180
GRanD ID:
950
Latitude:
39.954933
Longitude:
-104.749168
Surface area (km2):
7.8
Basin type:
reservoir
Dam completion date:
1893

Surveys (3)

Survey Citation:
Bunn, Richard. 1986. Breeding records for Clark's grebe in Colorado and Nevada. 46(3): 30. Published by Great Basin Naturalist.

  • Time period
    21 June 1978
  • Source
    Notes
  • Both Western and Clarks?
    N
Count Type Range Max Year
Max Adults 1 to 100 4 1978
Most Recent Adults 1 to 100 4 1978
Max Nests N/A N/A N/A
Most Recent Nests N/A N/A N/A
Max Chicks N/A N/A N/A
Most Recent Chicks N/A N/A N/A

Comments:

Observation of 2 Clark's grebe pairs courting (B. Andrews, pers. comm.). No evidence of breeding, however.

Survey Citation:
Bailey, A. M., R. J. Niedrach, Western Grebe in Colorado, The Auk, Volume 55, Issue 1, 1 January 1938, Page 119, https://doi-org.uidaho.idm.oclc.org/10.2307/4078509

  • Type
    shore
  • Time period
    24 May 1938, ~20 June 1938
  • Source
    Notes
  • Both Western and Clarks?
    N
Count Type Range Max Year
Max Adults 1 to 100 52 1938
Most Recent Adults 1 to 100 6 1938
Max Nests 0 0 1938
Most Recent Nests 0 0 1938
Max Chicks N/A N/A N/A
Most Recent Chicks N/A N/A N/A

Comments:

Adults observed in courtship behavior and showed interest in vegetation for possible nesting but in late June, water was drawn down for irrigation and no suitable nesting habitat remained.

Survey Citation:
Giroir, G.P. and T. Leukering. 1999. Breeding distribution and numbers of Eared, Western, and Clark's grebes in Colorado. J. Colorado Field Ornithologists 33:83-90.

  • Type
    shore
  • Time period
    23 May 1998, 28 July 1998
  • Source
    Occasional Paper
  • Both Western and Clarks?
    Y
Count Type Range Max Year
Max Adults 1 to 100 91 1998
Most Recent Adults 1 to 100 91 1998
Max Nests N/A N/A N/A
Most Recent Nests N/A N/A N/A
Max Chicks N/A N/A N/A
Most Recent Chicks N/A N/A N/A

Comments:

One of 93 lakes, ponds, and reservoirs surveyed in CO. Not certain Barr Lake is a nesting lake. According to other entries, it's a possibility but no evidence entered.

Sources of Information

  • Bailey, A. M., R. J. Niedrach, Western Grebe in Colorado, The Auk, Volume 55, Issue 1, 1 January 1938, Page 119, https://doi-org.uidaho.idm.oclc.org/10.2307/4078509; Messager, M. L., B. Lehner, G. Grill, I. Nedeva, and O. Schmitt. 2016. Estimating the volume and age of water stored in global lakes using a geo-statistical approach. Nature Communications 7:13603. Data is available at www.hydrosheds.org.; Lehner, B., C. Reidy Liermann, C. Revenga, C. Vorosmarty, B. Fekete, P. Crouzet, P. Doll, M. Endejan, K. Frenken, J. Magome, C. Nilsson, J.C. Robertson, R. Rodel, N. Sindorf, and D. Wisser. 2011. Global Reservoir and Dam Database, Version 1 (GRanDv1): Dams, Revision 01. Palisades, New York: NASA Socioeconomic Data and Applications Center (SEDAC).
  • Messager, M. L., B. Lehner, G. Grill, I. Nedeva, and O. Schmitt. 2016. Estimating the volume and age of water stored in global lakes using a geo-statistical approach. Nature Communications 7:13603. Data is available at www.hydrosheds.org.
  • Lehner, B., C. Reidy Liermann, C. Revenga, C. Vorosmarty, B. Fekete, P. Crouzet, P. Doll, M. Endejan, K. Frenken, J. Magome, C. Nilsson, J.C. Robertson, R. Rodel, N. Sindorf, and D. Wisser. 2011. Global Reservoir and Dam Database, Version 1 (GRanDv1): Dams, Revision 01. Palisades, New York: NASA Socioeconomic Data and Applications Center (SEDAC).
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