What’s a good day of birding in Costa Rica? For that matter, what’s a good day of birding anywhere? A common answer is “a good day of birding is any day when you go birding”. I can’t deny a certain degree of veracity to those words but let’s face it, no day of birding is the same, sometimes you get better views, others are highlighted with rare species, and the best of days exceed all expectations.
In trying to keep with the Zen birding way, before I look for birds, I try to erase the expectations. I am aware of the possibilities, that’s always important, but don’t actually expect anything. This way, the birding experience is more realistic because after all, the appearance and occurrence of birds are beyond our control. All we can do is up the odds in our favor by planting trees or taking other actions to protect bird habitat, learn how to look for and identify birds, and then carefully look for them in the right places.
Today being in the heart of fall migration, I can’t honestly say I didn’t have expectations but I still went birding without expecting to see certain species. I knew various species were out there, suspected that rare ones were present too but also walked out the door knowing that I can’t know if or when we would cross paths with them. All one can do is the things one can control; put in the birding time, observe, and be quick with the binos.
With or without expectations, today, September 26, 2021 was a good day of birding in the Central Valley of Costa Rica (perhaps my best). These are some of the reason why:
Each morning, lately, I have started the day looking out back, checking to see which birds have arrived from the north. Most mornings, a few birds are there, some days more than others. There have been a few good mornings but nothing like today, a day that featured an observable morning flight. Multiple warblers and vireos shot out of the vegetation, as per usual, flying upstream. A few stopped but most kept going and I couldn’t try and follow, there were other birds to look at. At times, a few too many.
A bird flying into a Cecropia turned into a Sulphur-bellied Flycatcher. Eastern Kingbirds materialized in a treetop to my right. Something else zipped in and landed…this fall’s first Summer Tanager! Scanning the background revealed a small flock of Bronzed cowbirds, a larger flock of Crimson-fronted Parakeet and a constant movement of Bank Swallows. I had 50 species in maybe 30 minutes and we were about to head out the door to look for more.
Hundreds of arrivals from the north and cloudy conditions made for excellent bird activity. At our first main stop, a small area of shade coffee, Red-eyed Vireos and Yellow and Blackburnian Warblers flitted in the trees, four Orchard Orioles chattered from an empty lot thick with grass, and swallows kept streaming overhead. More Bank Swallows moved through along with dark-throated Cliffs, elegant Banks, and a random massive Purple Martin. Before we left that spot, we also heard our first fall migration Swainson’s Thrush and had close looks at the following key species.
Cabanis’s Ground Sparrow
While searching for hidden cuckoos, I heard the tick ticking calls of one of Costa Rica’s major target birds, the Cabanis’s Ground-Sparrow. I see this species at this site from time to time but it’s never guaranteed. Like other skulking ones, this southernmost towhee is a fickle bird that inherently calls its own shots. This morning, three of them gave us a break and allowed us to appreciate their clownish face pattern.
Next on the list of sites to visit was a place with large expanses of short grass, a busy place that breeds noise but our only close option for grasspipers. Our main target was Buff-breasted Sandpiper and although scanning the runways did not turn up that Arctic visitor, we couldn’t find fault with an Upland Sandpiper. Our second of the year, this special grassland bird was busy foraging near Eastern Meadowlarks and a Killdeer. Perhaps it was reminded of its summer home.
After the airport, we checked the San Miguel reservoir. This small body of water can be a magnet for waterbirds, when dry, it can also be good for Baird’s Sandpiper. Today, no mud flats meant no Baird’s and with the place being covered with Water Hyacinth, we only saw Northern Jacanas, Muscovy Ducks, herons, Purple Gallinules, and a few other birds. With so much vegetation present, thoughts of Masked Duck came to mind (it could easily be there) and we scanned for it but didn’t see one today.
Instead, we saw a Sunbittern! Not on the reservoir itself but just downhill, along the main road where a bridge crosses a forested creek. I had stopped there hoping to find migrants in the woods when I heard the whistle of the Sunbittern. Thank goodness it was vocalizing. If not, I doubt I would have noticed it. We saw one of these Gondwana birds from the bridge and heard another. A fine random sighting for the Central Valley and a reminder of how prevalent this shy species is in Costa Rica.
A Snippet of a Cuckoo
Our final sweet sighting for the day was as brief as a gust of wind but it’ll still do. While watching Alder Flycatcher share space with Olive Sparrow, Scrub Euphonia, Nutting’s Flycatcher, and other birds, a Yellow-billed Cuckoo fast-trained it out of nowhere and flew deep into a fruiting fig. We looked, I tried to remind it of other places by whistling like an Eastern Screech-Owl but it must have been in a vacation state of mind, we never saw it again.
As I write, the day’s not over yet. I just counted 90 species from four hours of birding in the morning and 30 minutes more during the afternoon. With a more concerted effort, we could have easily found more than ten additional species but today was already a fantastic day of birding, I hope yours’ was too.