In this full color poster we have taken 16 different common birds and listed the nesting materials they like, the diameter the opening hole should be for the selected bird, the egg incubation period, the type of house (box or shelf) , the height the house should be above the ground and the ideal placement of the house.
As in the past this poster will download in the 8.5 x 11 size for individual student use. And as always we recommend you take it to your nearby copy shop and have it enlarged for use on the bulletin board.
John F. Gardner
The Environmental Ed Guy