HEATKEYS

General information on how to attract nesting bluebirds and other small cavity nesters, including distinguishing nests and eggs, heat, dealing with house sparrows, house wrens, nestboxes, etc.

Citizen Science: Anyone who watches birds, from backyards to city streets to remote forests, can help researchers better understand birds and their habits.

Stanford University is one of the world

This is the homepage of the Purple Martin Conservation Association, a non-profit organization dedicated to the preservation of the North American Purple Martin.

Instructables is the Biggest How To and DIY community where people make and share inspiring, entertaining, and useful projects, recipes, and hacks.

Information on birding and wild birds including bird profiles, necessary supplies, bird identification, attracting birds, birdfeeders, birdhouses, birding travel and bird conservation.