The 1997 El Niño/Southern Oscillation (ENSO 97-98): Biological observations possibly related to El Niño Midwest  

Midwest (IL, IN, IA, KY, MI, MN, MO, OH, and WI) / Great Lakes / Dakotas / Nebraska / Kansas
	Fish	Birds	Other
September			24  29
October			24
November
December			14  26
January			02  05  06
February			18
March			02  09  30
May			28
July			02 05

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