Hi Jax,
The long, sharp, yellow beak is the weapon the starling uses to kill Purple Martins, Bluebirds, woodpeckers, and other songbirds when he steals their nest sites.
The Purple Martin is about the same size as a starling, but has a short black beak that is wide at the base. It is a beak specialized for catching insects on the wing.
Male martins who are 2+ years old are solid black purple.
Younger martins and female martins are mostly brown on the back and mostly grey on the chest and belly.
There are great photos of martins on the web.
Click on this page to see dozens of photos:
http://www.link not allowed/id61.htm
Your martin house looks much too close to a tree!
Martin house location is critical. Martins want their housing out in the open, away from trees, with wide-open flight paths. For more info, scroll down to the
Location section on this page:
http://purplemartin.org/main/mgt.html
Martins can be
very difficult to attract, especially in the North. This article gives you the basics for attracting martins:
http://purplemartin.org/main/topten.html
Jax, we want you to start a martin colony! Please keep asking questions!
There are great Canadian landlords on this forum, including some in your city.
One of my favorite websites belongs to Bob Buskas of Alberta.
http://www.wtc.ab.ca/northernskys/
Hope to hear from you, Mary