Costa Rica is decidedly tropical. Ain’t no winter going on here and yet, recently, ice and snow touched the high parts of this birdy nation. Not exactly flurries, no playing snow king of the mountain in plowed parking lots or scraping windshields but, there was some freezing weather in certain parts places. Those would be uplifted and volcanic grown spots like 12,000 foot Chirripo Mountain and 11,000 foot Irazu Volcano.
Yeah, that infamous polar vortex up north stretched its icy fingers into Central America and I won’t be shaking its subzero hand. I’ll take a pass on birding those cold places for the moment, will at least wait until Irazu gets back to its 50 and 60 degree temps before I do any Unspotted Saw-whet Owl searching.
That’s way up in the highest parts of Costa Rica but what about the rest of the country? Can you still go birding? Of course you can! The birds aren’t going anywhere, here’s what else this and similar cold fronts bring and what to expect for birding.
Dry season? Umm…not exactly
Cold fronts like these long freezing fingers are a reminder that the “dry season” refers to the Pacific slope. In the mountains and on the other side of the country, the part where rivers flow to the Caribbean, you’ll need your umbrella. You might also need a poncho and rubber boots and a whole lot of dessicant packets for your optics because, on the Caribbean side, a cold front is a wet front.
Yes, the temps drop a bit and that is some nice respite from heat and humidity but, it’ll rain, and probably a lot. Don’t expect predictable rain either, more like annoying, light misting rain that morphs into serious heavy downpouts before eventually going back to light rain again and so on.
We’re talking wet birding but, we’re not talking no birding. Find shelter and watch from there, keep watching and waiting for the rain to slow or stop. When that happens, bird activity will jump, be ready for a wealth of avian moves.

Road closures
One unwanted side effect of heavy rains are road closures. They usually happen in mountainous areas and might not occur at all but you’d be wise to keep checking Waze. That especially goes for any travel on Route 32. The heavy rains and steep slopes on this important highway make it the road mostly likely to be closed, at least during serious cold fronts.
Other roads can close too, and some minor ones might even flood. Just be aware of where you are going, alternate routes, and not driving through flooded areas and you’ll be fine.
On a related note, the main road to Poas seems to be closed. A bridge is being replaced and might not be ready for another month or two. Hopefully, there will be a temporary bridge in place but I’m not sure of the current situation.
Windy weather
The other side effect of a cold front in Costa Rica is the wind. I’m happy to say that the wind has calmed down for the moment, hopefully it will still stay that way. When the cold front hits, it throws a constant blast of windy weather into the Central Valley and Guanacaste.
The birding becomes very challenging because the birds don’t want to deal with that wind any more than we do. To see them, you’ll have to find sheltered spots and wait for the wind to die down.
Odd birds? Any country firsts?
One exciting possibility of a cold front is it bringing some poor, lost birds to the playing field. Maybe, maybe not but given the unusual and severe push of cold weather from the north, I think it’s worth looking for them.
I would guess that the cold front might bring some ducks, gulls, or other waterbirds to Costa Rica. Other species to watch for are sparrows and other songbirds that typically winter further north. Those and wanderers like waxwings.
It will be interesting to see what local birders find these days! I’ll be looking too. If you happen to see some crazy sparrow or other odd looking bird, please eBird or Facebook it or do whatever it takes to get the word out.
Altitudinal migration

Most of all, this is how cold fronts affect birds in Costa Rica. Various species, especially frugivores, tend to migrate to lower elevations. Don’t be surprised if you see typical middle elevation birds like Silver-throated Tanagers way down in the lowlands at La Selva. There might also be White-ruffed Manakins, Black-faced Solitaires, and Black-thighed Grosbeaks.
Other birds are possible too, even things like Yellow-eared Toucanet or rare Lovely Cotingas. Keep those birds in mind when birding foothill and lowland sites right now!
Although I don’t look forward to birding in any rain, I am psyched about birding in lower elevations and looking for rarities. This cold front has got to have several birds on the move!











































