- Dutch Birding Association – the website is about the bimonthly journal Dutch Birding and all information about the WP and Dutch rarities and related subjects.
- Endemic Guides – Wildlife Tours and Nature Adventure
- Deep Jungle Home – some creative ideas on converting unused or waste material into bird houses. By Setting up a birdhouse in your backyard or balcony you will be offering a safe nesting place for birds. With growing city boundaries and afforestation birds find it difficult to find a safe place to nest. By offering the same you will help the bird in survival. Make sure to plant native trees and plants as well.
« THE MOST ACTUAL LIST OF THE BIRDS OF BULGARIA