Originally Posted by Uncle-Cle
Thanks for the info.
How can owls, eagles enter the buildings?
Are you sure they use planks?
There's no way cover the 'door', plus it has to be wide open to welcome the Swiftlets to come in and out. So the owls and eagles make use of that to go into a buffet in the building. So, there are pest controls to take care of that. We want our Swiftlets to lay egg and nest their babies in peace. Then you will get the quality bird nest.