I leaned this back in the 60s from the Clancy Brothers' recording, with words pretty much as Joe gave them above, though the Clancy's had a refrain of 'Ah-ah-ah-ah-ah, ah-ah-ah-ah-ah, my singing bird as you'... I don't think I've ever heard your last verse Richard (though I didn't listen to the Corries that much in those days!).

The entry in Roud is a bit strange. As Joe's entry above states it's under Roud 2946. Apart from the McPeakes, 2946 is versions of The Maid of The Mourne/Moorlough Shore ("You lofty hills and flowery dales"), which seems to be unrelated to My Singing Bird (at least in the 2 versions I've just looked at in Song of The People and Shamrock, Rose and Thistle).

Roud also lists it My Singing Bird as VN3884 Walton's 132 Best Irish Songs & Ballads (c1950) and Walton's New Treasury of Irish Songs & Ballads 2 (1966), which appear to be the same song ("I've seen the lark soar high at noon").

Mick