Homes for the Birds
Caged birds have been popular for centuries and this bird catalog illustrates with lovely color photos the range of birds available in 1930. You can page through the catalog or go directly to a particular bird using the links on the left.
Homes for the Birds brings up two different subject areas. In one case there are active campaigns to provide rare and endangered bird species with more safe and healthy nesting spots. As old growth forests become scarcer and scarcer it can be difficult for some bird species to find a place to nest. I saw recently that the population of Macaws in the Costa Rican rain forest is actually limited by the number of available nesting holes; so it can be very important.
The other subject is building birdhouses for the pleasure of having more birds around your home. Given the extent to which some woodcrafters go in making birdhouses, this achieves the status of a folk art. Caged birds have been popular for many years as you can see from looking through this 1930 catalog from Bird Haven.
There are lots of bird houses for sale online but I think the best and most diverse collection can be found on Ebay. With all the people who sell there some will be skilled woodworkers who are just trying to get their expenses back for their hobby. I think folks like this deserve support so below are listed all the current bird house auctions on Ebay. I would encourage you to search for affordable, but individually hand crafted houses, and shop accordingly.