Showing posts with label flying insects. Show all posts
Showing posts with label flying insects. Show all posts

4/10/2023

tree swallows find nest box

The pond is home to Tree Swallows Tachycineta bicolor who hunt insects 'on the wing'.  They catch flying insects while flying low over water or over grasses that the insects forage among. 

We have boxes that Tree Swallows use to nest in.  This bird was checking the box for suitability. 

The box has a 'Sparrow Spooker' (nylon line attached securely with hook-eyes on top and around the entrance) that protects eggs and babies of Tree Swallows from House Sparrows who cannot negotiate the lines.  House Sparrows destroy eggs and baby birds in other species' nests.