Designed for swallows, this all-wooden nest box features a special slotted entrance
The oval entrance makes it easy for swallows to enter because of their "V" shaped bodies, but House Sparrows dislike this entry opening.
Pivoting side access ensures easy ability to check the health of nestlings and also makes clean-out simple. Ventilation is provided by openings on each side and there are drainage holes in the nest box bottom.