beavers on the river are building a dam and burrows from fallen trees. a lot of fallen trees and branches worsen the flow of the

tree nature outdoor water dam forest wood beaver river lake environment animal landscape summer park branch pond plant rodent green wildlife wild ecology natural grass stream beautiful mammal home sticks background reflection damage log fallen blue spring bite lodge woodland ecosystem teeth timber travel scenic foliage rural brown creek beavers are building burrows from trees lot trees branches worsen flow river disturbance drought crop failure