URN:catalog:ICE:TRBL:add

Observer: 
Brian Acord
Location: 
Delevan T43
Observation Date: 
2011-04-15
Best Estimate for Number of Birds Observed: 
250
Minimum Estimate for Number of Birds Observed: 
200
Maximum Estimate for Number of Birds Observed: 
300
Type of Estimate: 
Visual and Untimed
Precision of Estimate: 
Scanning Blocks
Minutes spent at observation site: 
30
Singing: 
Yes
Carrying Nest Material: 
Yes
Colony quiet, Incubation inferred: 
No
Adults Carrying Food: 
Yes
Fledglings out of Nest: 
No
Distance to Water: 
water adjacent

This colony was located at -122.1067393, 39.2764686 (NAD83). Same basin as Delevan T42.2 observed on same date, but this location is in the SE corner of the basin whereas Delevan T42.2 birds were observed in the SW corner of the basin.

Birds were observed carrying stuff, but was not clear if it was food or nest material; likely food. More females were observed than males (2:1 F:M). The substrate where the birds were perched and dropping down was bulrush/tule. The basin was moist and had puddles, but was not completely flooded.

Birds were frequently flying back and forth from this location to the east over Stone Corral Creek to where this colony has been located in the past.

Could not gain access to Delvan Blind 24.

Brian Acord and Krysta Rogers.