28 Mar. Bear Men's Fac. Club - ♂, probably same as as before, W of bridge. Another bird here, not just ♀, who is still singing E of bridge. I got load of dead grasses from Viride creek, flew across to stump of very large leaved plant. Hopped to small stump, back to bushes back and forth many times. Finally stayed in bush for 2 couple minutes, but back to stump with same material. Then about 3 feet away from stump, about 120° as I look from bridge. I could see movement in Pennywinkle, and the bird appeared W/o the grass. Evidently in early stages, so I won't look for a few days. There is some sort of triangle bee, as I noticed a long while back. I'm sure there are 2♂, 1♀ (w/ broken tail, altho it doesn't show all the time). She was displayed toly one ♂, but another is near her during building. It is possible that there is another ♀ and the bridge separates territories, but I can never see more than 3 birds. NW corner Cafeteria - across ledge - Pair of birds here - ♂ singing on ledge, along walk, I in low bush nearby remains of body. I constantly gave alarm note while I was in area, but ♂ moved and sang down toward tree Art. When I moved + sat on cliff remains, ♀ stopped chirping. In fact, I lost track of her. As I left, she is still there.