Egg and Hatchling Development

Black-capped Chickadee

  • 1 brood.
  • Clutch size 1-13 eggs; typical 6-8.
  • White eggs with fine reddish-brown dots or spots; female incubates while male provides food (12-13 days incubation).
  • Nestling period is 12-18 days.
  • Fledglings remain dependent on parents for 14 – 28 days.

Red-breasted Nuthatch

  • 1 brood.
  • Clutch size 2-8 eggs.
  • White, creamy, or pinkish white and speckled with reddish brown.
  • Incubation 12-13 days.
  • Nestling period is 18-21 days.

Northern House Wren

  • 1 to 2 broods.
  • Clutch size 3-10 eggs
  • White, pink-white, or grayish, speckled or blotched with reddish brown.
  • Incubation 9-16 days.
  • Nestling period is 15-17 days

Downy Woodpecker

  • 1 brood.
  • Clutch size 3-8 eggs.
  • Plain white eggs.
  • Incubation 12 days.
  • Nestling period is 18-21 days.