We are slowly catching our breath from the busiest and most productive season we have ever had here on the Ridgway’s Hawk Project. As we suspected, 2016 was a landmark year and we have seen some amazing results from all of our hard work these past years. We could not have accomplished this without all the help from our supporters, thank you!!!!
We set many new records this year with a final count of 12 nesting pairs being observed in Punta Cana. Eight of these pairs actively nested meaning that they made a nest, laid eggs, and incubated their eggs. Three of these pairs unfortunately failed at some point during incubation, but five pairs managed to hatch nine nestlings and eight of these nestlings survived and fledged. Since our first pair formed in 2013, a total of four nestlings have fledged, so having eight fledglings in 2016 was definitely an incredible achievement for the project.
Another exciting moment in the Ridgway’s Hawk Project happened this year when male Blue 4/4 and female Red 2/2 hatched and fledged their first nestling. Male Blue 4/4 was the first nestling to hatch in PC back in 2013 and he is now the first hawk native to Punta Cana to be a part of a breeding pair. This pair having their first successful nest was definitely one of the highlights of the 2016 nesting season.
We achieved our release goal this season with 25 new Ridgway’s Hawks being released into the area. One of these 25 new hawks was released by a method called fostering. To do this we placed a young hawk (12 days) into the nest of one of the wild pairs in Punta Cana. Due to unexpected circumstances this nestling was left in our care. Unfortunately the timing wasn’t very good to place this bird with one of the groups being released, so we decided to place the nestling in a wild nest that only had one nestling. We have successfully done this in the past so we knew that there was a good chance that it would work. This pair successfully raised both nestlings and they fledged from their nest in late April.
The other 24 nestlings fledged from a brand new release site. This site was constructed due to the old release site being chosen as a nesting platform. The pair male Black 2/5 and Female Black 3/8 was eventually joined by female Black 3/5. This trio was observed extensively and nest building and copulations were observed with both of the females, but neither female ever ended up laying eggs. The good news is that we were able to construct the new release site in time to release 24 new birds to the area. This new release site is truly a joy to work at since the new observation tower is 5 stories high and above the canopy of the forest. It was originally constructed as a birding tower and we thought there was no better way to turn it into a birding tower than releasing Ridgway’s Hawks right there.
Once again it was an incredible season both in Punta Cana and in Los Haitises National Park. In all we ended up monitoring about 120 nesting pairs of Ridgway’s Hawks which is also a new record for the project. Again, many thanks for all of the support and please keep helping us achieve conservation records for the Ridgway’s Hawk.
Hold on to your hats folks!! The Ridgway’s Hawk is coming back in a big way in Punta Cana. As we suspected 2016 is going to be and already has been a land mark year for the Ridgway’s Hawk Project.
We are working double time trying to get everything accomplished during this very busy time of year. Thanks to a new pair of hawks deciding to call the release site their home, we have had to make plans to move the release site in 2016. Male Black 2/5 and Female Black 3/8 have been making a nest right on the platform at the release site. We thought they may move off and find a more suitable nest site, but it appears they are bound and determined to stay put. Hopefully this young pair will be successful at nesting in 2016.
We are currently monitoring 11 pairs of Ridgway’s Hawks in Punta Cana. On top of that, 6 pairs are currently incubating eggs. This is truly an amazing sign that these hawks are adapting well and that we are on our way to creating a new, self-sustaining population of Ridgway’s Hawks in the Puntacana area.
As usual for this time of year we are very busy monitoring the wild population of hawks in Los Haitises National Park. This year we are monitoring more than 100 pairs which are more than ever. One of our main objectives is to increase the production in these wild pairs. With this effort, we are able to increase production enough that we can remove nestlings for releases and at the same time, increase the production of fledglings in the wild population in LHNP. This is a win win for the Ridgway’s, especially since we have hired 15 local Dominican field technicians to help us accomplish this task. This has been a great way to help the local communities see the Ridgway’s as a valuable resource.
In about a month we will begin to bring the nestlings to Puntacana for release. Our goal for 2016 is to release 25 healthy hawks into the area. Hopefully the nesting pairs in Punta Cana will be successful in raising some young hawks as well.
That’s it for now, time to get back to work. As always, a big thanks to all of you who help support this very important work!!!
It’s the end of 2015 and it feels good to look back on another fruitful year for the Ridgway’s Hawk conservation project in Punta Cana.
The work we did in Jan 2015 drastically reduced electrocutions of Ridgway’s Hawks this year. Only one hawk was electrocuted and it was on a pole that we had not been able to adequately cover with the materials that we had purchased in 2014. This year we have a grant from the Avian Power Line Interaction Committee (APLIC) and matching funds from the Puntacana Ecological Foundation, allowing for the purchase of more retro-fitting supplies with the goal to cover a new section of power lines and also to finish retrofitting the more complicated fixtures that we were not able to cover last year. The work on the power poles not only prevents electrocution of the Ridgway’s Hawks, but helps to protect many other bird species, including migratory raptors.
It has been several months now since we closed down the release site for the season and radio tracking the reintroduced hawks has been the lion’s share of our work. We do this in order to know how each hawk is progressing and also to make sure that people living near where the birds are hunting and roosting are aware of our reintroduction efforts and understand the importance of helping to protect this critically endangered species.
Many of the young birds that formed new pairs last breeding season have been seen together again. We have been concerned for the pair Red 27 and Black 23 since this spring when a gardener found Red 27 on the ground, overwhelmed by an infestation of over 70 bot-fly larvae. Miraculously, Red 27 survived the ordeal (see our last two quarterly reports), but she and Black 23 were not seen together at all over the summer and fall after she was re-released. We are happy to report that they have been together recently and we are excited for their prospects in 2016. Another young pair Red 24 and Black AR have already begun pre-nesting season copulations, also a promising sign for 2016.
As always we are constantly trying to improve our efforts at educating the public about Ridgway’s Hawks and conservation in general. At the end of October our environmental education coordinator, Marta Curti conducted a teacher training workshop at the Puntacana Ecological Foundation. This was an intense four day session and 10 teachers from 5 target communities in the Punta Cana area participated. These teachers learned valuable skills which they can take back to their communities and use to help reach hundreds of students. This event was so successful that we are already in the process of planning the next workshop.
Project coordinator, Thomas Hayes, says he thinks this year is going to be pretty awesome for the Ridgway’s Hawk in Punta Cana.
It is that time of year again. The hustle and bustle of our busiest season is coming to an end. We completed the nest monitoring in the middle of July and at the release site in Puntacana Resort & Club, only a few Ridgway’s Hawks continue to return in the evenings to feed. This does not mean that the work is over until the next nesting and release season. It is actually just a transition into focusing on monitoring the new population in Punta Cana and preparing ourselves for the upcoming season.
Speaking of monitoring, we are tracking more Ridgway’s Hawks than ever – a result of our most successful season this past year in Punta Cana. Not only did we release more Ridgway’s Hawks than ever before (31), we also had a record low number of mortalities with only one confirmed. We credit this incredible achievement to all the hard work we have put into our education program and our efforts to make all the power lines in Puntacana Resort & Club and the surrounding area a safe place for Ridgway’s Hawks. With so many new birds, we have to focus our attention on keeping track of each individual hawk. This allows us to hone in on areas where the hawks are starting to establish territories, and educate community members living nearby and who are most likely to come into contact with these birds. . We also work with locals - providing them with materials and information on building chicken coops - so they can protect their chickens by keeping them in a coop at night or while they are unsupervised. This not only protects the chickens from predation by hawks, but also from other predators such as rats, mongoose, feral cats, snakes and owls. Once people no longer see Ridgway’s Hawks as a threat to their chickens, they can begin to understand how these birds are beneficial to have around.
This past season we found six new pairs of Ridgway’s Hawks in the Punta Cana area, bringing the total number of pairs in the new population to eight pairs. This is a major achievement for the project. Four of these pairs attempted nesting in 2015 and one pair was successful in producing the fourth wild young to fledge naturally in the area. In the last report we wrote about one of these nests failing due to the adult female being infested by parasites while incubating a nest. This female has fully recovered and has been returned to the wild. We hope to see her trying to nest again in the coming year. We are very hopeful that we will see even more pairs in 2016, as well as more nesting success and wild hatched young.
Our research in the past few years has showed us that parasitism by bot flies (Philornis spp.) is one of the major causes of mortality in young Ridgway’s Hawks. We have been working very hard to develop treatment protocols that will help us to increase the productivity of the species. This undertaking has been very successful and is allowing us to take larger numbers of hawks from the source population in Los Haitises National Park without having a negative effect on the numbers of nestlings which fledge there. In fact, we are more than tripling chick production in this population. This is great news as it allows us to work faster towards the end goal of having a self-sustaining population in Punta Cana. This year we also embarked on research in order to gain a better knowledge of these parasites. This work is being conducted in a laboratory right here in the Puntacana Ecological Foundation. We hope that in the future we will understand why these parasites are so prevalent and so devastating to some bird populations. Eventually we may be able to use what we learn to implement control methods on a larger scale which could have a positive impact on other bird species both in Dominican Republic and in other parts of the world, as well!!
As usual, we have a lot of news to report about the Ridgway’s Hawk Conservation Project. During the nesting season between January and July we are busier than ever with all aspects of Ridgway’s Hawk Conservation. Our holistic approach to conserving this critically endangered species means that we have a very diverse set of tasks to accomplish. We are currently monitoring 90+ pairs of Ridgway’s Hawks in Los Haitises National Park. On top of that we are also monitoring 8 pairs of Ridgways Hawks in Punta Cana and the surrounding area. This not only includes finding these pairs and their nests, but also climbing into the nests to monitor the health of nestlings once they hatch. We also help out with a number of hands on management techniques such as repairing nests to keep them from falling and treating nestlings for parasites which can cause high rates of mortality. We have released 26 new Ridgway’s Hawks into the ecological reserve in Punta Cana and our efforts to increase environmental awareness are in full swing with increasingly positive results.
During the height of the breeding season, we received a call from Punta Cana employees stating that they had found an injured Ridgway’s Hawk on the ground. It was a female hawk we had released in the area last year. She had been incubating one egg in her first nest and became infested with a number of parasites which caused her to grow weak. Thankfully, we were able to restore this hawk to health and release her again. The fact that the employees were able to identify the hawk, knew of its importance and went to the trouble to try to save her, shows how far the project has come in educating people about this bird and creating interest and support for the program. Gracias Amigos!!!!
On May 22, we brought 55 students from the communities of Juanillo and Suero Juanillo to the Punta Cana Ecological Foundation for our annual Ridgway’s Hawk Day celebration. Students visited the Ridgway’s Hawk release site and had the opportunity to see a number of hawks up close. They each received a palm tree sapling to plant at home and participated in an art project, decorating their pots with felt and other materials. We then brought the students to the beach for a boat ride along the shore and to participate in a few games teaching them about coral reefs and conservation.
Of the 8 pairs of Ridgway’s Hawks in Punta Cana that we are monitoring, several have engaged in nesting behavior so far this year. One pair is currently incubating eggs and one pair successfully hatched two chicks. Unfortunately, one of the young chicks died sometime in its first week of life. The second chick is healthy and continues to grow each day. Another pair of hawks spent a long time incubating what turned out to be infertile eggs. As part of our assisted dispersal program, we placed a young chick slated for release into this pair’s nest - a technique called “fostering.” The adults took to the chick right away and did a wonderful job raising a healthy bird. This young hawk successfully fledged on the 5th of May and still doing well to date.
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