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The IDNR headquarters at 1 Natural Resources Way in Springfield has experienced a power outage and tree damage throughout the grounds as a result of severe storms in the area. The agency expects to reopen the building to the public on Monday, June 15, 2026, though this could be subject to change. Check back here for an update before planning to visit the office in person.

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Wild About Illinois Fishes!

Family Clupeidae - Herring Family

Family: Clupeidae - Herrings are silvery, flat-sided fishes. The herrings have a ridge on the middle of the belly with sharp, pointed scales. They have no lateral line and no scales on the head. They resemble members of the mooneye family but differ in having the dorsal fin far forward of the anal fin. A small, triangular projection, the axillary process, is present above the base of the pelvic fin.
     Alabama shad (Alosa alabamae)
     skipjack herring (Alosa chrysochloris)
     alewife (Alosa pseudoharengus) [nonnative]
     gizzard shad (Dorosoma cepedianum)
     threadfin shad (Dorosoma petenense)

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