Nyer Pine 1972 Journal 16 Chaco Experimental Station, 295 km NW Villa Hayes, Depto. Pte Hayes, Paraguay 25 June Thru the middle of this run, I traced an old road, which petered out into a trail thru 'the floating veg. probably kept clear by crocodiles (reported to be up to 3 m, quite safe?). Numerous screamer, stork, heron, ibis, and a few muscovy ducks. Traps set at base of trees, on floating veg, and on rafts made of cut reeds, & on some rotting log structures at edge of lake. Lots of clipping evident esp in rushes & around floating vegetation. Saw a rat on rotting log structure - jumped out of a hollow log when I stepped on it, & disappeared under crate. May be sign of larger rodent - eg., trails & clipping, tho the locals claim that weas, neiche, capybaras or nutria are found here. 26 June Traps from last night - 1 frog, 15 well footed swamp rats (11 put up, # 192-202), vole like mouse (in grass at edge of swamp, that were caught # 191) & 2 new long tailed swamp mice, # 189-190. More wild clouds building up. Decided to do 'miscellaneous' trapping to get more of these long tailed mice & to