Paysen Lake (Horfield Lake)
Grebe Survey Summary
- Max Adults: 300
- Year: 1970-1990
- Most Recent Adults: ?
- Year: 2011
- Survey Type: Shore; Boat; Air
- Most Common Threats Reported: N/A
- Lake name:
- Paysen Lake (Horfield Lake)
- Location:
- Saskatchewan
- Latitude:
- 50.718423
- Longitude:
- -106.741164
- Surface area (km2):
- 204.3
- Region associations:
- Thunder Creek
- Comments:
- Drought in the 1980s dried up this complex of ponds, marshes, and waterbodies. This area is very important for waterbirds as most of the surrounding land is agriculture.
Surveys (2)
Survey Citation:
COSEWIC. 2014. COSEWIC assessment and status report on the western grebe (Aechmophorus occidentalis) in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. 55 pp. www.registrelep-sararegistry.gc.ca/default_e.cfm
-
Type
shore; boat; air -
Time period
1970, 2011 -
Source
Report -
Both Western and Clarks?
N
| Count Type | Range | Max | Year |
|---|---|---|---|
| Max Adults | 101 to 500 | 300 | 1970-1990 |
| Most Recent Adults | 1 to 100 | ? | 2011 |
| 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:
From Table A.3, maximum counts of breeding Western grebes from surveys conducted during nesting season from 1970 to 1990 and 1991 to 2011 without breaking those down into years or other details (sourced from Wilson, A. and Smith, P.A. 2013. Distribution and population status of Western Grebes in Canada. Unpublished report for the Canadian Wildlife Service).
Survey Citation:
Environment and Climate Change Canada. 2021. Management Plan for the western grebe (Aechmophorus occidentalis) in Canada [Proposed]. Species at Risk Act Management Plan Series. Environment and Climate Change Canada, Ottawa. 5 iv + 52 pp.
-
Time period
2009 -
Source
Management plan -
Both Western and Clarks?
N
| Count Type | Range | Max | Year |
|---|---|---|---|
| Max Adults | 1 to 100 | 86 | 2009 |
| Most Recent Adults | 1 to 100 | 86 | 2009 |
| 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:
From Appendix C, data columns are historical high count, high count since 2000, and most recent count. Since minimum count was not stated, I entered the minimum from these columns though it might not be the actual minimum across the span of years reported. Also, there is no detail on years that were excluded from surveying so range of survey years may be inaccurate. Footnote for this lake is that breeding was confirmed. Sources are McKellar et al. 2019 and McKellar et al., in press.