Friday, March 3, 2023

Morepork in nest box

This nest box was built from a Wingspan design (Link here: https://www.wingspan.co.nz/PDF/how-to-build-morepork_nest_boxes.pdf ) and installed in 2018 by a person who lived on the gully. He has since moved house. The bait line he serviced has been taken over by one of our volunteers. While doing one of these services back in November a morepork was noticed leaving the nest box. We then installed a field monitoring camera on a nearby tree. This camera recorded the progress of the two chicks and activity of the parents up to the successful fledging. Photo 1 was taken early in the evening while going to install the camera for the night. Note the camera bracket to the right of the bottom parent bird. Things of interest recorded were that both parents fed the chicks; other than only one mouse recorded, all the food supplied to the chicks were invertebrates, probably moths; repeat visits were very frequent (Video 1) although at times there could be a pause for half an hour or more. These rest periods tended to be in the middle of the night. Moreporks strongly defend a territory of 3.5 to 7.8 ha. The Mangaiti Gully system is 30 hectares so in theory it could support 4 to 8 breeding pairs so there is room for a few more boxes.

No comments: