Most of the birds that [[Ma Sweeney]] has caught are blackbirds.  Could this be a subtle tribute to the first verse of the song 'Sing a song of Sixpence'?

Most of the birds that [[Ma Sweeney]] has caught are blackbirds.  Could this be a subtle tribute to the first verse of the song 'Sing a song of Sixpence'?

 

Sing a song of sixpence, a pocket full of rye  

''"Sing a song of sixpence, a pocket full of rye  

 

Four and twenty blackbirds baked in a pie

Four and twenty blackbirds baked in a pie

When the pie was open, the birds began to sing

When the pie was open, the birds began to sing