How sweet and lovely. I have been enjoying some lovely tiny birds in my garden over recent weeks :-)
Well, we have two swallow families living under our roofs, and redstarts, wagtails, blackbirds, great tits, blue tits nesting in our garden, but seldom would one of them visit our rooms. :)
Did he sing for all of you?
Nah, he was pretty taciturn and seemed happy when he found his way out.