Close call for the Mother Chickadee! Our nestcam captured a house sparrow giving a mother chickadee a rough time with aggressive and invasive behavior. What can you do to prevent house sparrows from encroaching on other bird nesting boxes? Add a hole reducer that stops them from entering bird houses. The nest box camera is part of BPZOO’s Saving Animals From Extinction North American Songbirds plan. Stay tuned for more updates on the nest cam! . #bird #SAFE #NAS #songbird #chickadee #house #spar