The poem a day prompt was 'detail' so I thought but not for long...
Distinguishing rooks from crows is easy - unless they happen to be flying. And since my BTO tetrad is inhabited by corvids, corvids and corvids, I need to get my eyes & head round these flapping flocks.
It's easy to distinguish when they're landed:
the domed head, shabby look, bald-beaked rook,
the crow altogether a tighter, neater bird.
But what when they're in flight?
The flocks are rooks; the solitary, crows-
but that's not always so.
Sometimes you can still make out the peaked head of the rook,
or you can focus on their tails:
roundness indicates a rook,
straight edged is a crow.
Their calls, too, echo their sharpness:
relaxed caws from rooks,
harsh grating from crows.
Toady's photos used by kind permission of Mike Atkinson. Check out the link from this page.