Holmes, R. 1959 Ercilia fuscicollis 20 June Barrow Alaska The song given during this aerial display is somewhat varied. It usually consists of a double-twi (hard note) which may be given in rapid succession (up to as many as 10-12 times) or it may be interspersed with a type of "singing" note which was described earlier. This note during the flight display is different however, in that it seems to be carried out longer and can be interpreted as a type of trill. It could be characterized as a singing-ggg-see note, which is drawn out. This note may be given on the ground as well as in the air. Several times when he flew to these heights he merely hovered instead of gliding down. In one case he remained aloft for 2½-3 minutes, and another time it was at least 2 minutes. No vocal movement could be heard during this hovering, but occasionally, he would glide for 4 or 5 feet at which time, he would give the song described above, and then begin hovering again. Once the bird was seen next to the female and the previous.