Three Hokkaido Woodpeckers
10,000 Birds
JUNE 17, 2024
One study on Hokkaido found that 47 out of 110 old woodpecker holes were used by renters, which in the biological world are called secondary cavity users. If you care for beetles rather than for woodpeckers, you might still be interested in protecting the bird. One paper describes an interesting approach to monitoring this decline.
175 
Let's personalize your content