19 March 1. Santa Ana Wildlife Refuge, 7 mi. S Alamo, Hidalgo Co., Texas At 10:02 both titmice in ebony where tray was located & a minute later, one in tree W. Both foraging in higher leafy portions of that tree at 10:04 a minute later, one was in next tree N, mates also present. One then flew to Tree "B" & than to mosquito beside it. There was a disturbance to SW & calls vet vet vet & calls of woodpecker. Tit I watched did brief periculum & flew SW. Bird worked thru brush to point about 60 ft SW "dead tree" at 10:10 calling vet vet vet and siskadee vet vet vet as vet vet vet calls given from NW in dense thicket. This bird then worked still farther W into wooded part of old reservoir. Calls continued from there, vet vet vet and see pickup of bird I had followed (?) at 10:15. However at 10:17 two titmice in ebony E of "B" calling vet vet vet a scold answered see siskadee by bird in direction I had followed. SON OUT NOW, CLEARING The bird I followed must have been a tree mouse. 10:19 scolding tit moved N & continued vet vet vet while mate moved to ebony NE & called sit only. Vet vet in answer & sit sit also from Tree "B" now (10:21) foraging motion stub end branch bark twig trunk // // // // above in ebony tree 10:25-30 Bird preen and branch well protected then flew to trees chasing an unidentified bird out. branch-bark aerial dead leaf flew to mosquito W // 1 1 at 10:33 had taken insect & worked later afterward.