The Assiniboine Park Zoo is a part of the Association of Zoos and Aquariums (AZA) Saving Animals from Extinction (S.A.F.E.) North American Songbirds Program.
One true way you can help the bird population is to build and mount a bird house suited to the type of bird you are trying to attract. This can allow them to raise their brood while protected from most predators. The cut outs mounted here demonstrate the ease in which you can prepare to build the house. The finished product hides the log sheet.
Instructions on how to build this style birdhouse are available at www.birdwatching-bliss.com.
The difficulty is a bit higher because this area is always full of Muggles. Be creative in how you retrieve and replace the logsheet.