How to breed a bird

Crisis generally breed in May-July. It will build the nest at the main branches of birch trees, fir trees or pine trees, about 3-5 meters high from the ground.Its nest is cup -shaped, usually composed of withered grass and bark, with moss outside, and beast hair or feathers on the inside.After the nest is built, the female birds begin to lay their eggs. Each nest will produce 5-7 pieces. The eggs are green, and there are red-purple spots on it.