Definitions of Passeridae. true sparrows: Old world birds formerly considered weaverbirds. synonyms: family Passeridae. type of: bird family. a family of warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings. Where to put your sparrow nest box. Ideally, it will be under the eaves of your house or high on a wall. Make sure you have the homeowner's permission before putting up a nest box. The box will need to be at least 3m (10 feet) from the ground, facing north or east to avoid it getting too hot or wet.
Purchase a plank. A basic nestbox can be built using a single plank of wood. Purchase a board that is one inch by six inches in thickness/width, and four feet long.
Any type of wood will work. However, hardwoods like oak and beech will last longer than softer woods like pine.
Don't use wood that's less than 3/4 of an inch thick. It can warp and won't provide enough insulation to keep birds warm.
House sparrows are invasive in some places and can be very territorial, so check with your local wildlife services before you make a nesting box 2
Mark for cutting the roof, front, and back. Using a pencil and a ruler, draw several lines on the wood to mark where you'll be cutting to create the sides and back of the nestbox. The cut lines should be as follows:
For the roof, move eight inches down from the end of the plank and make a mark on each side of the board. Use a ruler to draw a horizontal line between them.
For the back, move 12 inches (30.5 cm) down from your first line, and draw another horizontal line across.
For the front of your nestbox, move down another seven inches down and draw another horizontal line. 3
Mark for cutting the walls and bottom. The walls of the nestbox need to be angled at the top so the roof will slant.
For the first wall, move eight inches down the left side of your plank and make a mark. On the right side, make a mark seven inches down. Draw a line between the two. It should slant gently upward.
For the second wall, the lengths are reversed. Move seven inches down the left side of the plank from the slanted line and make a mark. Move eight inches down the right side of the plank and make a mark. When you draw a line between these two marks, it will be horizontal if you have done it correctly.
Finally, for the bottom, draw one more horizontal line five inches down from previous one. There should be about an inch left at the bottom, which you will discard.
Cut the pieces. Use the lines you've drawn to cut the pieces for your nestbox with a saw.
Any saw will do, but a table saw or circular saw will give the cleanest cuts and do so the fastest.
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