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I I I I I I I I I I I I I I I I I I I Tbe extent of migratory use varies considerably depending upon project lo- cation, and availability of food supplies. Of the four projects for which migratory waterfowl count data were available, the extent of such use at three was greater than had been predicted by pre-cODstruction planners. The three projects with documented use exceeding expected levels are: Lake Sharpe, Council Grove Lake and Carlyle Lake as developed by Prosser, Hartin and Stroud (1976a. 1978) and Hartin, Prosser and Stroud (1978). At the John Redmond Reservoir project, which includes the Flint Hills Na- tional Wildlife Refuge. the predicted use by ducks was very close to the actual use. The goose-use predictions, on the other hand, were nearly five times higher than actual post-impoundment use. This error may have been associated with the refuge dtmensions. which proved smaller than an- ticipated; or. more probably, the. esttmate of goose-use predicted by the Fish and Wildlife Service was increased by an inadvertent computational error as reported by Prosser. Hartin and Stroud (1976b). Fisheries predictions have proved somewhat erratic, although tending to substantially overestimate angling use in most lnstances. As an example. the predicted angler use of the Council Grove Lake project was approxi- mately 3.7 times higher than the estimated current angling level (Prosser, Martin and Stroud, 1978). Other projects where angler-day predictions were of greater magnitude than post-construction levels included the Lit- tleville Lake project. which described projected angler use levels some 2.2 fold greater than post-construction occurrence (Prosser. Martin and Stroud, 1976c), the East Lynn Lake project at some 1.9 times higher than the currently documented level as reported by Hartin, Prosser and Stroud (in press). The John Re~nd Reservoir project angling use prediction was 51