12.18/2013: Strategy: Have the hawks presence before the grackles roost. I put up 3 Harris' hawks in the next area prior to roosting behavior. The grackles would see the hawks and move to the other side of the building. As it got darker, I called in 1 Harris hawk. Then left two out to move and chase the grackles around. I would also shine a flashlight and the grackles would know that it meant a hawk was nearby and the would shift around. The hawks then start to roost instead of chase grackles so I I monitored the until I was satisfied they had settled in for the night. Two hawks have spent the night tonight. I am up extra early to start my day and retrieve them from 'camping' out. My room is a great location to monitor the sounds of the grackles. I know which calls mean which activities. From morning greeting/noise. To predator alert when the hawks move about.
Thursday, December 19, 2013
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