Moulded nest forms

We have shown that Swifts move into nest boxes with nest forms more quickly than nest boxes without nest forms. There is also some evidence that Swifts are more likely to attempt breeding in their first year of occupancy. With an average life span of 7 years, Swifts only have 4 or 5 breeding seasons, so an increase of 1 is significant. We have also shown that Swifts seem to show no preference for…