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URN:catalog:ICE:TRBL:861

April 27, 2008 - 9:43pm — egraves
Observer: 
Brad Valentine
Location: 
Shaw Avenue at Academy Avenue
Data Source: 
Breeding status, distribution, and habitat associations of the Tricolored Blackbird (Agelaius tricolor) 1859-1989.
Observation Date: 
1990-05-14
Best Estimate for Number of Birds Observed: 
1250
Minimum Estimate for Number of Birds Observed: 
1000
Maximum Estimate for Number of Birds Observed: 
1500
Type of Estimate: 
Visual and Untimed
Precision of Estimate: 
Unknown

Colony found nesting in marsh. Observed foraging in an irrigated pasture to the west. Possible threats/disturbances include urban uses to the south (removal of annual grassland foraging area) and change in farm economics and water availability that could in turn cause a change away from irrigated pasture which appears to support nesting habitat.

Status of of 1991: Extant