RTH 1964 C. fuscicollis 27 june Barrow, Alaska are still relatively active in display - Three on the Mee 8-50 whose territories about 300m from the location 1 this 4. P/12 - gave - sign note d just the three notes which usually introduces the pump-zez which lasts about 2-3 sec. Next is a note described by Denny Smith as a typewriter carriage or foot-rail running. The quality I vary for different bird. Varies in pitch & loudness - Some are very deep & can be described a roarth-zez- whereas others are a higher-pitched pump-zez or pump-za. The variation in song quality may be due to age difference, as observed in melanotus. W/BS are very aggressive to other Sop's - Chosen 1 BS are particularly cautious today - an 8:00 light chosen & supplemental BS (father) stood flush for next - for about 3 min - will bring it several ground displays- with simple sweet aerial flights set every day during chorus. Also - Chased TCB, PS787, RP4. A chorusing 2 birds seen near 1 & #1's territory - but may have been different birds.