It is rather amazing how many insects’ birds eat a year. To give you an idea of how much they eat, one metric ton equals 2204 lbs.
Most of the energy that birds get from eating insects (and seeds for seed eating birds) goes to maintaining their energy. Little goes to their body weight, according to a study led by Martin Nyffeler of the University of Basel in Switzerland.
This is one reason why it is important to offer a bird friendly habitat in your own backyard. Many birds eat both seeds and insects, depending on the time of the year and the weather. Woodpeckers that eat mostly insects will eat seeds in the winter when insects are scarce.
A bird friendly habitat will offer shelter, food, water and nesting sites for all types of birds. Offering seeds and suet in the winter will keep insect eating birds in your area and that will benefit you and your garden in the warmer time of the year.
It is also interesting to note that spiders consume as much and more insect than birds. They eat between 400 and 800 insects a year.