Black-capped Chickadee About The Black-capped Chickadee. Chickadees prefer birdhouses with floors that are about 4 x 4 inches square, 8 to 10 inches tall, entrance hole is 1 – 1/8 inches round diameter. The Black-capped Chickadee is fairly tame and frequents backyards. The songbird feeder accommodates six feeding birds at one time in six squirrel proof 1″ diameter x 3/4″ deep holes each above a single perch. One of the most familiar birds in the US, the Black-capped Chickadee is known to be a saucy, active bird. Coming back to the issue of a Canadian chickadee hole, perhaps an oval hole of 1 1/8" width and a height of 1 1/4" to 1 1/2" will pass Canadian chickadees but still excludes Canadian house sparrows. It measures in at 12-15 cm (5-6 in), with a wingspan of 16-21 cm (6-8 in) and a weight of 9-14 grams. Other bird house entrance holes sizes for cavity nesting birds find here. Different birds prefe different sizes of the hole (or opening) as well as how high that hole is from the birdhouse floor. Fill with most any type of feed: sunflowers, thistle, corn, peanuts, millet or mixed seeds for chickadees, house finches and gold finches. If so, then sanding the top and/or the bottom but not the sides of a 1 1/8" diameter hole … There are different bird house dimensions for different species. Best bird house kits to attracts b lack capped chickadees. Here, we identify Massachusetts birds that ... Chickadee, titmouse, nuthatch, wrens, and Downy Woodpecker 4 x 4: 8 1 1/4: 6 4 - 20: see above Add wood chips: To attract the species you desire you will need to construct your bird house with specific sizes for the box itself, entrance holes and the species desired height placement above ground. The hole should be placed 4-6 inches above the floor. Bird House Dimensions.