1.3K views · 48 reactions | Many of the cavity nesting birds such as wrens, chick-a-dee, tree swallow, blue bird are starting to nest. All bird houses will be investigated but some will not be used. Most birds prefer a clean house. This is the last weekend to do bird house cleaning. Be aware though, many times a mouse will have moved in or you may find last years fledglings that did not survive. This wren nest had thousands of twigs and a few feathers. | Shalom Wildlife Sanctuary | Facebook