Incoming Resources
- California condor, Susan H. Gray
- California condors, saved by captive breeding, by Meish Goldish
- Vulture, the private life of an unloved bird, Katie Fallon
- Vultures, by Nathan Sommer
- Vulture vomit, by Bert Wilberforce
- Bearded vultures, by Lindsay Shaffer
- California condors, by Rachel Grack
- California condors, by Rebecca Sabelko
- California condor, by Amanda Lanser ; content consultant, Janet A. Hamber
- Vultures, by Renee C. Rebman