Region of Rio Papaloapan, Veracruz 1 May 23 semi-original vegetation remaining. Just off road there is a pool of standing water where we saw Jacana spinosa and green heron - apparently a permanent pool. Bordering this thicket is a dense stand of rather short fan palm tree - +/- 20 feet tall on the average - this has been partially cleared. In adjoining area there are clumps of trees & bushes - BHA - "Veracruz type" as at last camp + short to toposte type tree and a large-leaved guanuchel - all in all similar to veg. at last camp. There are a few taller trees - 40 feet at root, including a few guancostes. In the palm stand, Syngonium is abundant. Generally the growth form of the stands of trees & the palms also is very similar to that at last camp - the only possible difference being the fact that practically everything is evergreen while there was a mixture of deciduous & evergreen elements at last camp. Even so the growth form is so similar that it is difficult to see why subfinucha does not occur here. There are several explanations: 1) subfinucha has an extremely limited range of tolerance ecologically - this is suggested by its limited range and by fact that it never seems to be abundant even in extensive stands of seemingly good habitat. Some factor necessary to the kind may be absent here - possibly lack of exposed singing perches since veg. here is evergreen - I noted fewer leaf branches. 2) Though suitable the vegetation type occurs in such isolated pockets that subfinucha