Phenology
Phenology is the study of recurring plant and animal life cycle events in relation to climate and season. By observing these natural rhythms, we can engage visitors in hands-on learning experiences that deepen their connection to the natural world.
2026 Nature notes
May 18: Strawberries and barren strawberry flowers in bloom, Green frogs calling sporadically
May 13: Cherries and service berry trees in bloom
May 12: Toads trilling, wood anemone blooming, grey tree frogs singing
April 29: first bats seen!
April 21: First mourning clock sighting, snapping turtles are out!
April 20: Salamander eggs found.
April 17: First mosquito sighted, Alder, birch, and hazelnuts are blooming! Trailing arbutus are starting to bloom at NLDC.
April 16: Loons returned, wood frogs first calling, trumpeter swans sighted, Statehouse Lake ice out, red-winged black birds return.
April 14: Golden-crowned kinglet sighted.
April 13: Fox sparrow sighted.
April 12: Salamanders move to ponds, first osprey sighted, spring peepers calling.
April 11: Kingfishers return.
April 10: First earthworms sighted, ruffed grouse drumming, Eastern phoebe sighted.
April 9: Mourning doves return.
April 6: Great Blue heron sighted.
April 3: Sandhill cranes sighted, Canada geese migrating, wood ducks sighted.
April 1: Common Redpolls sighted, chickadees pair up.
March 29: taps pulled from the sugar bush! 14 gallons of syrup made.
March 27: "wooly bear" caterpillar out and about. Snow buntings sighted.
March 24: Chipmunks out of hibernation. Robins spotted at NLDC!
March 18: Woodpecker drumming.
March 17: Dark-eyed junko sighted.
March 16: American tree sparrow spotted.
March 15-16: Third winter storm in one week, 9 more inches of snow.
March 14: Red winged black birds.
March 12-13: 7+ inches of snow fell.
March 12: 3 wolf daybeds found during tracking survey
March 10-11: About 6 inches of snow fell at NLDC.
March 10: Trumpeter swans sighted, Canada geese seen on Manitowish River.
March 7: Snow fleas spotted in the snow.
March 4: Raccoon tracks seen in the snow.
March 2: Snow melting around trees.
March 1: Sugar maple taps are in!
February 24: About 4 more inches of snow fell at NLDC.
February 22: About 4 inches of snow fell at NLDC.
February 20: Snow fly found crawling in the snow at NLDC.
February 16: 50 degrees F, temps steady in the mid 40’s from 2/13-2/17
February 10: Giant water bug found in Statehouse Lake!
February 9: Swans spotted in the Manitowish River
February 5: Ice on Statehouse Lake measured at more than 12 inches thick. Water temperature 30 degrees F.
February 2: A barred owl was spotted flying in the NLDC driveway. Staff found evidence of fox during a tracking survey.
January 31: Evening grossbeaks seen in Winchester
January 29: fresh otter slides and footprints at NLDC
January 22-24: cold temps, lows in the -20 to -35 degree range, plus wind chill
January 16-18: More than 11 inches of snow fell.
January 6: First rainfall after January 1, low temperature above freezing.


