Capodaras mexicanus 17 Apr. 2310 Ellsworth Ave. Berkeley Calif. - A nest bee in small tree by building entrance. Bird was sitting on nest, flew when I shook the tree. Nest is about 10 feet high (from ground). Bird flushed sang in its fluttering flight hit in a tree not far off. 20 Apr. Inside Walst Annex - & & D sitting on top of same post. He was fluttering wings and tail and singing. She ignored him and flew away. He calmed down in a minute and also flew away.