The last few decades have not been kind to the California Condor鈥攖he large birds got dangerously close to extinction in 1987, due to lead poisoning from bullets left behind by deer hunters. But thanks to widespread reintroduction efforts in parts of California, Utah, and Arizona, this spring five condors were raised in the wild. And for the first time ever, one of them hatched on camera.
Hidden high in a cave of California鈥檚 Big Sur wilderness, Chick 787 hatched in April, under the watchful lens of a nest cam provided by the , which began releasing condors in 1997. The cam also revealed an interesting twist鈥攖his chick had two moms. Researchers suspect that its dad, likely male 242, died from the same lead poisoning that鈥檚 been the downfall of so many other condors before the chick hatched. So another female condor stepped up to the parenting plate.
California Condor females 鈥317鈥 and 鈥171鈥 (it鈥檚 not clear who the biological mother is) are both widows. At 18 years old, 171 is the oldest female in central California鈥檚 flock. Her previous mate was also a victim of lead poisoning. After her (or perhaps 317鈥檚) egg was laid and her most recent mate died, the second female swooped in to 鈥渁ssist for the greater good of the flock,鈥 senior biologist at the Ventana Wildlife Society Joe Burnett in a blog post titled: 鈥淕irl Power!鈥
This helping hand, or, well, wing, likely helped the chick survive, says 探花精选 Field Editor Kenn Kaufman. Condor chicks require the body heat of one parent as the other is off scavenging. In fact, chicks are so needy that condors sometimes raise their young in trios鈥攖wo males and a female or vice versa.
In general, condors seem to be good at helping each other out. Older, unrelated birds often feed younger ones, Burnett says. 鈥淏ut this was quite different,鈥 he says. 鈥淲e have documented altruistic behaviors among this flock before, but never in a nesting situation [like this].鈥 This is the first time Burnett has heard of two female condors, without a male, successfully raising a chick. He suspects 787 will fledge any day now.
While female co-parenting may be unique for California Condors, it does happen from time to time in other birds, says Kaufman. He points to a pair of Western Gull females in Southern California, which successfully raised a chick together and were documented in a 1977 Science. Laysan Albatross lady couples have also found .
The Society鈥檚 time lapse video shows the chick go from egg to velvety six-week-old. It should have lasted longer, but the chick (accidentally?) bumped the camera from the nest in late May, and researchers couldn鈥檛 swing another trip up the 60-foot cliff face to right it.
Still, Burnett says, this imagery 鈥渋s proof that the species is on the path to recovery.鈥 In fact, lead bullets will be completely banned from California by the start of 2019. 鈥淲e feel there is a great amount of hope for the condor,鈥 he says. Perhaps, 鈥渢hey will once again be self-sustaining.鈥