Swan Lake

Survey Citation:
Burger, Joanna. 1971. “The Western Grebe in Minnesota.” Loon 43: 4–9.

• Time period
  1961
• Source
  Notes
• Both Western and Clarks?
  N

Count Type	Range	Max	Year
Max Adults	1 to 100	5	1961
Most Recent Adults	1 to 100	5	1961
Max Nests	1 to 100	2	1961
Most Recent Nests	1 to 100	2	1961
Max Chicks	N/A	N/A	N/A
Most Recent Chicks	N/A	N/A	N/A

Comments:

1961 was the first record of Western grebe breeding at this lake. Swan Lake is 60 miles NE of Heron Lake and is the easternmost breeding record in Minnesota for Western grebes.

Survey Citation:
Green, Janet C., and Robert B. Janssen. 1975. Minnesota Birds: Where, When and How Many. Minneapolis: University of Minnesota Press.

• Time period
  ~1965, ~1975
• Source
  Book (species account)
• Both Western and Clarks?
  N

Count Type	Range	Max	Year
Max Adults	101 to 500	100-150	~1965-1975
Most Recent Adults	101 to 500	100-150	~1975
Max Nests	1 to 100	presence	~1965-1975
Most Recent Nests	1 to 100	presence	~1975
Max Chicks	N/A	N/A	N/A
Most Recent Chicks	N/A	N/A	N/A

Comments:

States that breeding and 100 to 150 birds were observed for the last 10 years on this lake. No specific years stated but I am approximating ~1965 to 1975 due to publication year.

Survey Citation:
Henderson, Carroll L. 1977. Minnesota Colonial Bird Nesting Site Inventory. St. Paul: Minnesota Department of Natural Resources. http://files.dnr.state.mn.us/eco/nongame/projects/consgrant_reports/1977/1977_colonial_birds.pdf. AND Henderson, Carroll L. 1978. Minnesota Colonial Bird Nesting Site Inventory. St. Paul: Minnesota Department of Natural Resources.

• Time period
  1977, August 1980?
• Source
  Report
• Both Western and Clarks?
  N

Count Type	Range	Max	Year
Max Adults	101 to 500	140	1977
Most Recent Adults	101 to 500	140	1977
Max Nests	N/A	?	?
Most Recent Nests	N/A	?	1978
Max Chicks	N/A	N/A	N/A
Most Recent Chicks	N/A	N/A	N/A

Comments:

The Minnesota Colonial Waterbird Nesting Inventory was conducted by the Minnesota Department of Natural Resources from 1977 to 1980. The reports include Western grebe colony counts of each year (except 1979) but only 1977 and 1978 have individual breeding lake survey numbers. This one had 70 pairs in 1977, X 2 for individual numbers. The 1978 report does not report this lake's Western grebe numbers for the year 1978 status is uncertain at this lake. The 1980 report summarizes colony status for 5 colonies but does not name them so is entered here as a statewide entry with no breeding lakes named.