A dead Arctic tern was on the beach only 90 feet away and visible to the gyrfalcon.
When only a streak of silver sky, with a shoal of little violet clouds, was left of the daylight the gyrfalcon gave up the chase.
The gyrfalcon is the best-proportioned and most active member of the Falcon tribe.
Westley Redhead told us that a gyrfalcon was at Umiat as early as the latter part of May, 1952.
On July 4, one gyrfalcon sat on a promontory at the south end of Barrier Lake.
This bird is as large as the gyrfalcon, but, although equal in cunning and address, is possessed of less courage.
The gyrfalcon is the speed-king among birds, but the hoary bat is faster still.
The gyrfalcon can certainly not catch a phalarope in flight.