Zooming With Owls — Part 3

Striped Owl, photo by Randall Jimenez Borbón, aka Ciccio

The Striped Owl is a favorite — just look at that photo! Considered “local” and “uncommon” in the Coto Brus-Terraba region, they can be found perched on roadside utility wires at night. Let’s say, for example, you are driving home to San Vito after a weekend at Manuel Antonio National Park. You see an upright figure on a wire ahead and it’s getting dark so you slow down to see what this might be: a Striped Owl! What a prize!

The ear tufts are reminiscent of Long-eared and Short-eared Owls of North America but hunting techniques differ in that the northern birds tend to fly over large, open areas like salt marshes whereas ‘Stripeys’ favor roadside edges of forest or rice or palm plantations, often near lights, where they can dive for prey that includes small mammals, large insects, amphibians and occasionally small birds. 

We wanted to know more about “owl pellets”, so fascinating to nature centers around the world, so we decided to ask ‘Stripey’: why do you all cough up those (potentially) gross detritus-y balls of ??? and this is the answer (click here and click play). The bird didn’t really answer the question but we were happy to hear a recording from so close to home.

This Striped Owl comes to us from the extensive nature photography collection of Randall Jimenez, a Detectives de Aves teacher, who works at Finca Cántaros as the Coordinador de Alcance Comunitario, i.e., the public face of the new Asociación Ambiental Finca Cántaros.

Randall can be found on Facebook, WhatsApp and other social media platforms and, should you wish to visit Cántaros, please contact him.

Welcome White-winged Doves!

We have been waiting for quite some time for these angelic-looking birds to show up in our beloved southern zone and it appears our vigil might be over.

White-winged Doves. Photo by Jim Zook

First, a pair was spotted in September near La Union de Sabalito by Jim Zook who was on the job doing bird counts for Stanford University. Shortly thereafter, one was found by Randall Jiménez Borbón, a Pajarero Del Sur member and Detectives de Aves teacher, in his garden in Linda Vista just south of San Vito on the road to Ciudad Neily.

In the Stiles and Skutch Guide to the Birds of Costa Rica (published in 1989), they were considered a ‘. . . locally abundant permanent resident in dry Pacific NW, south to Jaco.’ In more recent times, they are described as ‘. . . common resident in northern Pacific and across the Central Valley . . . ‘ by Garrigues and Dean in the second edition of The Birds of Costa Rica. You can see the trajectory; it was just a matter of time.

They are pretty easy to see if you are expecting them: Garrigues describes them as “. . . commensal with humans. . . ” and goes on to say they favor open areas and are often seen feeding along roadsides. They look a lot like Mourning Doves except for the white band down the length of the wing – this is easily seen at rest and a lovely display in flight. Further, Mourning Doves have long, tapered tails and black spots on their wings, both of which are lacking in the Whities.

From November to May, our resident populations are joined by migrants from the southwestern US. The entire range goes from Arizona, New Mexico and Texas in the US; throughout Mexico and down through Central America to western Panama, as well as throughout the Caribbean islands.

Breeding season is January to March, so we will try to keep an eye on the Sabalito pair. And, meanwhile, keep a sharp eye out as they may turn up at your house any day now!