Holmes,R. 1963 Calidris bairdii 29 may Barrow, Alaska One seen collected on mud-shore / [illegible] Wohlschlag - in comparison with a ♀ Pectoral. 28 May Two seen in drum area - between row 1 drums & road to gates. The two were on an open path of hundreds - suddenly one ran at the other, jumped at it, both & stood there for seven sec. - pecking with its bill around the head of the bird underneath. The wings / the bird on top were at 75° of flattening, tail was raised to about 45°. Suddenly, the lower bird hooked off the upper, raised one wing & tail & then turned & pecked on the back of the other at the same place. Repeated. They exchanged perches 4 or 5 x - each time, the birds' top appeared to be pecking at the nest to beat the lower bird. The lower bird also looked downwards in tail & far it slightly. After their exchanges, both birds took flight - keeping parallel to each other, each giving the full note - once periodically setting its wings at 45° & gliding for seven seconds, then resuming the fast flight. They moved W/NW Soul-3°0' - then both to the same area. They landed 200 yards apart, each on open tundra begun feeding. Lobs - 2 indiv. were seen feeding on each other in the same area - same route? - [illegible]