The official Costa Rica bird list stands at 932 species but soon, it’s going to hit 933. The bird species about to bump the list up a notch is the Dark-billed Cuckoo, an Austral migrant that was expected for Costa Rica but had never been documented until January 16. When the star bird appeared, a few people wondered if this was the same species I may had seen near Ciudad Neily two years ago. Although they are related, no, that bird was the Pearly-breasted Cuckoo, yet another Austral migrant that could also certainly occur.
That particular sighting was never confirmed to be the Pearly-breasted or the extremely similar Yellow-billed Cuckoo but at least the Dark-billed Cuckoo has been found and documented. Even better, the bird was photographed and subsequently seen by several local birders. If it sticks around, and you bird the rice fields south of the Ciudad Niely hospital, maybe you will see it too! I hope the bird also stays around long enough for me to see it but if not, at least a bunch of other local birders “got” it.
I figured it was a matter of time before a Dark-billed was found in Costa Rica because the species migrates within South America, is fairly common, and has already been documented from Panama, Nicaragua, Belize, and even Texas and Florida. As for it being found near Ciudad Neily, perhaps it’s not a coincidence that one (or maybe two) were seen there; this part of the country seems to routinely attract Coccyzus species cuckoos.
While birding around Ciudad Neily, I have personally seen several Mangrove Cuckoos, the possible Pearly-breasted (but more likely Yellow-billed), and other have also seen Yellow-billed. Perhaps the second growth and woodland edges adjacent to wetlands provide especially good habitat for larvae prey preferred by the cuckoos? Following that line of thought, it’s also interesting to note that, in winter, Mangrove Cuckoos utilize similar habitats at and near Cano Negro (speaking of that hotspot and megas for Costa Rica, Chambita found a Greater Ani there yesterday!).
Whatever the explanation may be, a new species for Costa Rica and other cuckoos are yet one more good reason to go birding around Ciudad Neily. The rice fields and associated wetlands are fun but there’s also other, forested habitats in the same area that harbor an excellent variety of species. To learn more about birding around this hotspot and where to watch birds in Costa Rica, get the second edition of “How to See, Find, and Identify Birds in Costa Rica”; a 900 plus page bird finding book for Costa Rica and overall birding companion for this birdy country. Go see some cuckoos, I hope to see you here!