Preparation of "bird houses»

Arrange a talk on the theme of the importance of agriculture to attract beneficial insect-eating birds. Many of those living in the hollows of insectivorous birds disappear from one or another area just because a person, clearing forests, destroys the hollow trees and all those places where the birds used to nest. Artificial hollow to some extent correct damage caused by birds, and bird "apartments" in the garden, kitchen garden, a grove, and parks, will find themselves tenants, which is more than payment for the provision of living space extermination of vast numbers of harmful insects and their larvae. However, surveillance for avian apartments will give a lot of very interesting material about the timing of the return of migratory birds, their behavior in the early spring, food, time, device sockets, the beginning of laying, when the chicks, etc. All the spring and much of the summer can be used for these interesting observations. A. Promptov offers for this purpose, a birdhouse with a glass back wall, strengthened by the window through which is under surveillance.