One Long Chain

On a Bird Singing in Its Sleep 
By Robert Frost

A bird half wakened in the lunar moon
Sang halfway through its little inborn tune.
Partly because it sang but once all night
And that from no especial bush's height,
Partly because it sang ventriloquist
And had the inspiration to desist
Almost before the prick of hostile ears,
It ventured less in peril than appears.
It could not have come down to us so far,
Through the interstices of things ajar,
On the long bead chain of repeated birth,
To be a bird while we are men on earth,
If singing out of sleep and dream that way
Had made it much more easily a prey.