If it was backlit so the color details weren't visible, maybe a Common 
Grackle? Obviously their colors are nothing alike, but a backlit 
silhouette might be similar.

It would be a real shock to see a cuckoo this time of year!

Dave G.

On 11/27/20 4:00 PM, Leslie Nulty wrote:
> In Jericho yesterday spotted what looked like a black-billed cuckoo
> (possibly juvenile).  It was backlit and I didn't have binos but couldn't
> think of anything else that would fit its profile - about 12", slim,
> relatively small head, long tail (no stripes on tail), erect posture when
> perched.  It didn't call so no sound to identify.  Sibley says they
> shouldn't be here in the winter. Any other ideas?
>