Dear S L Tai
I totally agree with you. We should keep a distance from the bird especially those need to leave in hurry. The bunting is far away from me. I just use a 600mm lens X 1.4 X 1.3 and also crop about 70%. As a result the bird seem to be close. I think not to disturb their living is much more important than to get a great photo. Anyway, thanks for your opinion.
Jac Lau