Website Links Here are some other sites we recommend. Houston Audubon Society HAS is a superb nature conservation organization. NARBA - North American Rare Bird Alert This is a great resource for those people interested in knowing how to find birds that are rare in North America. Sunbird Tours Sunbird operates some fantastic birdwatching tours around the world. Some of my photos are displayed with the Ethiopia and Goa, India tours. NANPA - The North American Nature Photography Association NANPA is the first and premiere association in North America committed solely to serving the field of nature photography. Texas Rare Bird Alert The Texas RBA is a wonderful resource for those people interested in knowing how to find birds that are rare in Texas.