URN:catalog:ICE:TRBL:add

Observer: 
Chuck Carroll
Observation Date: 
2011-04-17
Best Estimate for Number of Birds Observed: 
500
Minimum Estimate for Number of Birds Observed: 
350
Maximum Estimate for Number of Birds Observed: 
650
Type of Estimate: 
Visual and Untimed
Precision of Estimate: 
Unknown
Minutes spent at observation site: 
60
Singing: 
Yes
Carrying Nest Material: 
Yes
Adults Carrying Food: 
No
Distance to Water: 
over water
Area Estimate (square meters): 
120

Approximately 500 tricolored blackbirds in bullrushes. Many red-wings present. Birds were flying to north side of lake and back, many carrying nesting material. A second survey 29 April showed the site abandoned. Only a few tricolored individuals in area.