Cheers to our Sweet Sixteen! That’s how many years we’ve been tracking waterbird populations across the Caribbean with the Caribbean Waterbird Census (CWC)! Our 2025 regional count took place from January 14th to February 3rd, and as always, we were thrilled to see so many of our partners, friends, and colleagues jumping in to contribute to this invaluable long-term dataset by counting waterbirds in their local wetlands!
Keep reading for some exciting 2025 CWC highlights, from the wonderful birds seen to the dedicated survey teams who ventured out to their favorite Caribbean wetlands. Each and every survey contributes to a meaningful impact—thank you to everyone who helped make our 2025 CWC a success!
Training for success in Antigua
To kick off a successful CWC regional count, the team at the Environmental Awareness Group (EAG) began by recruiting and training new citizen scientists. They brought together a diverse group of participants—from complete beginners to seasoned birdwatchers—and equipped them with the skills to collect vital data at various wetland sites across Antigua! This inclusive approach ensured that all participants, regardless of their experience level, were empowered to gather accurate, valuable data that will support conservation efforts and guide effective management.
The training began with a classroom session, on January 29th at the Antigua State College (ASC) Conference Room. New birders were introduced to the basics of bird identification while experienced members of the Wadadli Warblers Birding Club enjoyed a helpful refresher. Led by Offshore Islands Conservation Programme Coordinator Shanna Challenger, the session focused on key features for identifying common waterbirds and seabirds. This was followed by three days of outdoor birding sessions where participants learned to use binoculars and identify different shorebirds and seabirds at the McKinnon’s Salt Pond. Not only did this initiative strengthen the incredible Wadadli Warblers club, but it also contributed valuable data to the eBird database! Welcome to the CWC team!
Wide participation in Puerto Rico
From San Juan in the north to Jobos Bay in the south, participation in the regional count was stronger than ever in Puerto Rico! The amazing coverage and number of CWC lists we have gathered over the years is a testament to the power of citizen science! Don’t believe us? Check the hotspot map of Puerto Rico in eBird for wetland areas! Here are some highlights from Puerto Rico’s 2025 count:
San Juan Bay: In February, SOPI (Sociedad Ornitológica Puertorriqueña Inc.) collaborated with Comunidad Peninsula de Cantera to organize a CWC survey within the Estuary of the San Juan Bay, with logistical support from the San Jose Fisherman Cooperative. The count covered the easternmost mangrove forests of the San Jose Lagoon and Pinones Lagoon, with 10 participants, including SOPI members, taking part in the survey.
Emilio Font, executive director or SOPI, shared that “even as these lagoons continue to experience the unregulated discharge of pollutants and the inadvertent presence of alligators from the pet trade, there was a significant presence of avian species now absent or reduced in other coastal areas in the island.” It’s good to hear that the birdlife of this area is still thriving, but these ongoing threats underscore the importance of continuing CWC monitoring to track these populations.
Jobos Bay: Heading south Carmen Maldonado and her sister Erika Enid volunteered with SOPI to carry our CWC counts at Cayo Caribe and Jobos Bay, in the towns of Guayama and Salinas. The counts were conducted by boat, allowing them to spot a wonderful variety of shorebirds, seabirds, waterbirds, and endemics; including Lesser Yellowlegs, Clapper Rails, several tern species, and both the Puerto Rican Woodpecker and Flycatcher.
Cabo Rojo: In the southwest, Cabo Rojo is a vital haven for shorebirds and is a designated site of regional importance within the Western Hemisphere Shorebird Reserve Network (WHSRN)! Luckily, Nahíra Arocho-Hernández and her team were on hand to carry out CWC counts at both Cabo Rojo and Laguna Cartagena National Wildlife Refuges (NWR). As Nahíra points out this monitoring is not just important for understanding the birds and their habitat use, but it also provides “a great opportunity for our volunteers to participate in the surveys and learn to identify the different species of waterbirds, shorebirds, and seabirds”.
Alongside volunteers Eduardo Cardona and Luis Ramos from the Gulf Restoration Office, Nahíra recorded 26 species at Cabo Rojo, including migratory birds like Black-bellied Plover and Ruddy Turnstone, as well as nesting Brown Pelicans (23 adults and 10 juveniles). At Laguna Cartagena, exciting sightings included a Sora, Limpkin, and the elusive Wilson’s Snipe!
Vieques: Covering the east, Daphne Gemmill of the Vieques Conservation and Historical Trust, shared news of the CWC surveys on Vieques. While CWC counts have been regularly conducted on Vieques, this was the first year observers in Vieques have actively participated in the regional count. They put in a phenomenal effort with 15 observers carrying out 30 water bird surveys!
In a fantastic showing, they counted an impressive 71 species, including 32 waterbirds. Overall, 1,800 birds were counted, with over 1,000 of them being shorebirds, underscoring Vieques’ importance for both migratory and resident shorebirds. Highlights included the uncommon Least Grebe with young, 63 Brown Pelicans in their breeding colony, rare Sora Rails, and five extremely rare White-tailed Tropicbirds.
Small but mighty in Statia
The story from St. Eustatius is another example of a small island making a big impact! Jethro van ‘t Hul shared that the STENAPA team conducted counts around the island at the 15 sites they established in 2024. CWC counts are regularly carried out at these sites year-round, reminding us that CWC monitoring extends beyond the regional count period from January to February! During this year’s regional count, they also took part in a boat tour around the entire island to see what seabirds were encountered and to survey nesting habitats for Red-billed Tropicbirds. They confirmed several roosting sites for Brown Pelicans, Brown Boobies, and Magnificent Frigatebirds. Additionally, the team spotted a Peregrine Falcon perched in a remote cave!
A vagrant who might be ready to settle down?
Down on Bonaire, Susan Davis shared some fascinating sightings from the regional count. She mentioned that Bonaire was home to a remarkable variety of ducks, many of which were overwintering rather than just passing through on their way to South America. Among the highlights, Susan spotted a rare Northern Pintail, marking the first sighting in over 20 years! She also observed large numbers of Lesser Scaups, Northern Shovelers, and Black-bellied Whistling Ducks. Interestingly, breeding White-cheeked Pintails were also spotted—an unusual occurrence for Bonaire, as they typically breed later in the year.
But one bird, in particular, had Susan really intrigued. During her counts she caught sight of a Greater Ani. This odd looking member of the cuckoo family is a rare vagrant on Bonaire with only a handful of previous sightings. This wasn’t the first time Susan has seen a Greater Ani recently. Back in December she also saw this species. Could her ‘CWC’ bird be the same individual? Back then, the Ani was carrying a twig! Was it building a nest?
The Greater Ani has never been known to breed on Bonaire, but seeing one transporting nesting material to a prime location—deep foliage overhanging water—is a promising sign. Does this mean there are other Anis on Bonaire? Or is this individual simply optimistic about future arrivals? Ani’s breed cooperatively and share nests, so it might be a while before enough birds show up for them to become a breeding species on the island. But stay tuned to Susan’s blog, where she is sure to provide any updates on this out-of-towner!
Although not strictly a ‘waterbird’ we think this beautiful pale eyed, black bird with its blue-green sheen deserves to be an ‘honorary waterbird’ due to its preference for river, lake and mangrove areas. Find out more about this species here.
The Caribbean Waterbird Census is an ongoing, long-term survey effort that provides important data that helps us keep track of the birds using Caribbean wetlands, understand the threats they face, and raise awareness. We are incredibly grateful for every single CWC count completed during the annual three-week regional census in January and February. THANK YOU to all those who sent us highlights and all those who led or joined a CWC survey this year.
If you missed this year’s regional census don’t worry—you can conduct a CWC count at any time throughout the year! CWC counts at Caribbean wetlands are valuable year-round and add to our knowledge of the resident and migratory birds that use them. Just be sure to use a CWC protocol in eBird Caribbean when entering your data every time you do a count at a Caribbean wetland, and do your best to do a complete count, i.e., record all the birds you see and hear. If you need help with your shorebird and waterbird ID you can check our resources page and take a look at our short ID videos on YouTube!
Find out more about the CWC program HERE and stay tuned for exciting developments on how to take part in the CWC on eBird- coming soon!
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