If you don't control these non-native predators, chances are your colony will have problems, will turn away potential Martins and scare off existing ones. PMC Talk- Conversations dealing with a wide range Martin topics. By following 3 easy steps you'll be able to predict the hatch and fledge dates , and ages of the nestlings in any given clutch. When migration starts in January so do the listings of cities where Martins have been spotted. If you want to learn more about raising Martins, read everything.
Stories are always a great way of relaxing.
I wish you all the best of luck in building your house, raising it and enjoying the Martins. I also purchased over a half dozen birdhouse books, scoured the WWW and continued to run across the same old thing. Read more on building a great house from plans. Taking care of Martins, once you have them is easy. Attracting them and establishing a new site, is another story.