Beaver 1967 species account red back sandpiper 2 13 July. The young red backs are now moving about. I floated one near AACs. I suppose most next have hatched or will be soon. 15 July Steve & I came across 2 family groups of L.B's feeding on a slight, raised hillock in the N edge of Carl marsh. They were probably eating Tipulids. We found all three sp. of Tipulids there but Tipula c. was very abundant (in relation to other two). 21 July Steve & I have been doing transects and I've noted (as has Steve) the complete lack of birds on the fensha. I've seen a few scattered red backs since the transects began, though quite.