My quest to find the nest of the pair of hawks that have been seen on upper Fifth Avenue came up empty again.  While I was in the Consevatory Garden, I saw a Red-tail circle around the garden with a pigeon in its tallons.  The hawk then took the bird to the roof of the El Museo del Barrio.

After a few minutes, the Red-tailed Hawk flew off in the direction of the Academy of Medicine, and disappeared.  Searches of the ledges of the building came up empty.