Public domain illustrated book page scan, related to zoology, free to use, no copyright restrictions image - Picryl description
A northern hawk owl perched atop a spruce tree.
Two owls sitting on a tree branch in a forest / Two owls sitting on a branch in a forest - public domain macro photography.
A Northern Hawk Owl sits on top of a spruce tree near the Teklanika River on Thursday, August 24, 2017.
A Northern Hawk Owl takes off from the top of a spruce tree near the Teklanika River on Thursday, August 24, 2017.