you will find that birds have a great sense of knowing when a camera shutter is being pressed... they also can sense binoculars being raised.
i went off herons when i heard what they get up too. grebes, now there's a great fishing bird. i want a pet little grebe.
thinking about the feedback... i found the interview quite odd at times as i'm sure one of the people had mild aspergers (sp?). the other guy was fine, lots of eye contact and body responses, etc. oh well. shame as i liked the charity too.