Bluebirds! Season 6. Episode 6. Twenty Boxes.

Boxes 18 and 19, Charles River Peninsula, Needham, MA

Charles River Peninsula now has a full set of twenty nesting boxes. New boxes: 3, 15, 18, 19, 20. Tree swallows immediately nested in box 18. Six eggs within a week.

Box 12

Nest box ownership has stabilized. House sparrows are only at one box (9). Bluebird boxes now have feathered chicks. And most of the tree swallow boxes have eggs.

Black-capped Chickadee, Box 4

To my delight, the chickadees have held on to two boxes, tenaciously outlasting tree swallow competitors.

White feathers at base of box 16

The only intrigue at present: white feathers mysteriously scattered around the base of box 16. Either the result of a careless human who opened the box on a gusty day. OR

House Wren, Box 20

Perhaps the newly arrived house wrens know something about it....

Warbling Vireo nest, Charles River Peninsula, Needham, MA

In other CRP news: first bobolink. But no kestrel for about a week. And I know where you're nesting, warbling vireos....