Nature Happenings - September

  • Western Meadowlarks migrate.

  • Asters are the last plants to bloom.

  • Monarch Butterfly migration peaks.

  • In early September, Elk are visible in the autumn rut around Jasper National Park and Waterton National Park.

  • Bats are busy feeding, building fat for hibernation and migration.

  • Blackbird (grackles, cowbirds and redwings) flocks can number in the thousands.

  • Shorebird migration ends.

  • Fall migration peaks for warblers and others.

  • Autumn colours begin — Sumac, dogwood and Virginia Creeper.

  • Most hummingbirds depart by the end of month.

  • Robins begin to join together in large flocks.

  • Bears are feeding in preparation for hibernation.

  • Switch feeders to high-fat, winter foods.

  • Sharp-shinned and Cooper’s Hawks are visible flying south for migration.

  • Whitefish in Lake Athabasca and in the Athabasca River begin swimming upstream to spawn.

  • Bull trout begin spawning in lakes and streams just east of the Rocky Mountains.

  • Semi-palmated sandpipers stop on mudflats of central Alberta during their migration from the Arctic to South America.

  • September 23 is the Autumnal Equinox.

  • Moose begin the rut towards the end of September.

  • Full Moon, also known as the Harvest Moon, is Sep 14/19 - New Moon is Sep 28/19