http://help.ebird.org/customer/en/portal/articles/1006789-guidelines-for-not-publicizing-certain-bird-observations
This morning I read tweets of a Brooklyn based snowy owl being repeatedly flushed by birders n photographers ,dangerous for a bird about to embark on its long journey north when it needs it's precious energy.
Read the code link above from Ebird.if it's there on Ebird,so should Twitter users comply.
Be a conscientious birder ,for the sake of the bird. Enjoy it from a safe distance ,say nothing.