Ventana Wildlife Society - Condor Reintroduction Field Notes

The green hillsides and aromatic wildflowers were at their height this year in April, and as we begin to see them fade, the crew anticipates yet another busy month to come.

April brought us a beached humpback whale, which the condors quickly found and began feasting!! Joe counted a total of 16 condors at one time feeding on this whale, including our precious wild chick, 444! Both pairs that are feeding their newly hatched chicks were also seen feeding at the whale, and the nestlings are getting nutritious whale meat-yum yum!! Based on the condors’ movements this month, we suspect they located this food source around the 15th of the month, and expect them to continue to visit the whale throughout May.

In early April, Mike caught the elusive 168, and we were able to conclude our trapping season. We now have a working transmitter on all 25 wild condors in the Big Sur flock!! In addition to trapping the wild birds, we also entered the consolidated rearing pen at the end of the month to handle 5 of the 7 total captive chicks. These chicks were given “pit tags” and a West Nile virus booster shot. This group will be transferred to Pinnacles National Monument in the fall and released shortly thereafter.

The two known active nests in Big Sur were also entered this month. Both dummy eggs were removed and replaced with pipping eggs from the LA zoo. Both hatched within 48 hours of their placement, and there are now two new wild nestlings in our flock!! Day Old Nestling Video The crew has been watching the parents feed the chicks on a regular basis, and both pairs are taking their duties seriously. It is so cute to see the little chick wing beg, and in return get a yummy pile of regurgitation from mom and dad! We will enter these nests in May for a 30 day check on the chicks, during which we will weigh them, take their blood, and give them a West Nile virus vaccine. We still suspect there is one more nest this season that is in a very remote location. We will attempt to confirm this suspicion, possibly via helicopter, in the next month? We will keep you posted…
-Sayre Flannagan
Condor crew member

Breeding season is in full swing and the crew has had their share of surprises this year. We have located two active nests in Big Sur, and suspect one more to come!! The two discovered nests were both entered this month with the help of the Fish & Wildlife Service, Los Angeles Zoo, and National Parks Service. A team was assembled, knots were tied, and biologists were hanging from ropes in an effort to check the health of the wild eggs.

After close inspection, both wild eggs were removed due to their infertility and they were replaced with the fake “dummy” eggs for the interim. This will give us the opportunity to return live “foster” eggs taken from captive zoo facilities for the wild pairs to hatch as their own. These first time parents will now be able to raise and interact with their own wild young! Stay tuned for more nest updates as the season progresses.

Speaking of wild young, our fearless little chick, “Ventana”, is still going strong in Big Sur. She makes regular visits to the feeding site, and seems to interact well with the other condors. She is very distinguishable from other chicks her age that were raised at the zoo- a lot more “street smarts”. While I observed a feeding the other day, I watched as her father, 167, pulled a piece of meat out from the crowd of hungry birds. Then, he ever-so-gently nudged his youngster toward the food to urge her to feed on her own. A few jealous condors tried to go for her meal, and were promptly driven away by 167, who fiercely protected the food for his chick. Gradually, she began to pick at the food and watched as 167 showed her how to use her feet to hold the carcass down. This was the first time we had observed the chick feeding alone and it was truly an amazing site!

We are also still watching a rambunctious group of juveniles in our new holding pen. The chicks are being mentored by Hoi, and have already begun to learn from him. They are scheduled for release into the wild in Fall 2008.

Notes from the Field, February 2008

February has been an exceptionally eventful month for VWS and the Central Coast flock! The condors have a slew of new arrivals to interact with. Five new juvenile birds were transferred up to the new holding pen at our wilderness sanctuary in the middle of the month. Within thirty minutes of the chicks’ debut, members of the Big Sur flock came circling overhead to check out the newcomers! The juveniles seemed to relax upon seeing some familiar shapes in the sky. The five youngsters were soon joined by two more chicks and a 16 year old adult condor named ‘Hoinewuit’. Hoinewuit will serve as their mentor during their stay in Big Sur and teach them important survival skills during their pre-release preparations. Since their arrival, the crew has been closely monitoring the new birds and they seem to be adjusting well to their new surroundings. *(The new holding pen’s natural setting has been excellent for our purposes. In the large aviary the birds have ample room to stretch out their wings, take short flights, and perch in real trees. There are four large one-way mirrors for the observers to use, and we can come and go without being detected.)

As for our wild flock, our hopes came true this month when we confirmed that condor pair 168 and 208 had laid a new egg! These parents of Centennia, the lost condor fledgling, have demonstrated impressive resilience by recovering from their loss. We used clues from direct observation and from 168’s GPS data to determine that the pair was incubating a new egg in their nest cave. We believe that female 208 laid the egg on Valentine’s Day – how sweet!

NEW EGG FOR CONDORS - MontereyHerald.com

In other news, we are happy to announce that Ventana, our fledgling from the redwood nest, showed up at our wilderness feeding site for the first time this month! We are so proud of our little girl! At this age, her parents will continue to stay close to her and to feed her by mouth. However, she will now gradually start to become more independent and consume her own food. Ventana acts a little clumsier than her graceful flock mates and she is frequently observed nibbling on “toys” like sticks and feathers. Sign up for a Condor Tour in Big Sur and maybe you will spot her! Ventana Wildlife Society -Ecological Experiences with Condor Scientists

Toward the end of February, we also had some new visitors from Pinnacles National Monument. Juveniles 400, 401, 405, and 411 made the 30-mile flight from their release territory, across the Salinas Valley, over the Los Padres Mountains, and then caught their first glimpse of the Pacific Ocean as they cruised over the ridge. Typically the Central Coast condors will spend the majority of their time near their original release site, but many will regularly sojourn over to Pinnacles from Big Sur or vice versa. The Condor Crew is thrilled to have so many new condors around this month!

A couple more notable events from this very busy month…first, the wild flock feasted on a dead sea lion along the Big Sur coastline for almost a week, and second, we observed two additional condor pairs (#199/ #231 and #171/#194) become reproductively active on the breeding front and we’re hopefully optimistic they will attempt to set up a nest site and lay an egg in March…keep your fingers crossed!

The condor team is gearing up for the arrival of seven condors in February! We have been working hard preparing our new flight pen to accommodate the new group of birds. Everything is all set and the holding pen looks fabulous. The new cohort (5 chicks and 2 sub-adults) will be coming to us from the captive breeding facility in Boise, Idaho and they will eventually be released in either central or southern California. The new holding pen is tucked away at our wilderness sanctuary, providing a remote and protected home to these young condors for their 6-9 month stay.

We did have to change their arrival date due to some unexpected recent weather. The rain storm that hit coastal California at the end of January transformed into hurricane force winds and THREE FEET of snow on the high peaks of the Ventana Wilderness! Our hard-working crew charged through the snow in order to do a necessary base camp mission to help out a member of our field team who was marooned by the storm. About half of our trip was accomplished on foot! The crew pretended to not have too much fun in the deep snow.

Love is in the air this month for the Big Sur condors. We are on the lookout for breeding behavior and have been finding it! We were so fortunate to have two pairs hatch chicks last year and we have even higher hopes for this year. Our observations of one pair copulating have us really excited (snicker, snicker). We are using radio tracking and GPS data to help us predict where any pairs may nest this year.

Ventana (condor 444), has been amazing us every day with her progress. She is one fine chick! Her flights are getting longer and stronger. In fact, this month she left her nesting canyon for the first time! Mom and Dad are always close by keeping a safe eye on her. She has been seen flying along with other condors near as well. Meet your new little sister, guys! We look forward to spotting her at a feeding in the near future. VWS dreams of having all of the juveniles born and raised in the wild like this some day!

In-flight species comparison chart

In-flight species comparison chart - Print a copy to take with you when looking for condors

We are continuing to place food and closely monitor the rest of the flock during these harsher winter months. There is lots of work to do this time of year, so we are so grateful to have a warm base camp, a dedicated team, and the support of our members!

Deborah Visco