URN:catalog:ICE:TRBL:add

Observer: 
John Irwin
Observation Date: 
2011-04-15
Best Estimate for Number of Birds Observed: 
300
Minimum Estimate for Number of Birds Observed: 
200
Maximum Estimate for Number of Birds Observed: 
700
Type of Estimate: 
Visual and Untimed
Precision of Estimate: 
Scanning Blocks
Minutes spent at observation site: 
20

four smaller colonies, each in a separate and nearby blackberry bramble, along the creekbed, with adjacent water and nearby cattails. No grains, but open fields for foraging. Overcast day, with limited activity from other known colonies, so colony count may be very low as compared with reality.