Know your coffee birds: Blue-crowned Motmot

by JulieCraves on July 10, 2008

I’d like to inaugurate my “Know your coffee birds” series with the bird Coffee & Conservation uses to rate coffees (e.g., a “five star” coffee here is a “five motmot” coffee): the Blue-crowned Motmot (Momotus momota).

Motmots are a family of New World tropical birds related to kingfishers. Like kingfishers, they nest in burrows which they dig themselves into soil cliffs or road cuts; these burrows are five to up to 14 feet long, and winding. Most motmots are medium-sized (robin size or larger), and are sit-and-wait predators of large insects, small reptiles or mammals and similarly sized prey, along with a little fruit.

The Blue-crowned Motmot is the most widely distributed motmot, and is found from Mexico to Argentina in lowland forests, on up to 1300 meters. It’s fairly tolerant of somewhat disturbed habitats, and thus can be found in open woodlands and second-growth forest such as those found on shade coffee plantations.

Blue-crowned Motmots are about 42 cm long (17 in). Like other motmots, they have a unique spatulate tail. When the new tail feathers grow out, they have an appearance like most other long-tailed birds. But a portion of the lower section of the two center feathers have weakly-attached feather barbs, so these barbs fall off the shaft in short order. This creates a bare stretch of feather shaft, with a paddle-shaped tip at the end. There is evidence that male motmots with longer denuded sections are more attractive to females.

This is peculiar enough, but motmots also swing the tail like the pendulum on a clock, generally in the presence of predators. Despite their size, motmots are often difficult to see until they start wagging their tails. Drawing attention to themselves when a predator is near seems counter-intuitive, but this behavior actually serves to deter the types of predators most likely to go for a motmot: those that rely on stealth and ambush. In essence, a motmot is signalling, “Hey, I see you, and you can’t surprise me.” Ambush predators tend to abandon the hunt when they know they’ve been detected.

I’ve seen several species of motmots in the tropics, including Blue-crowned Motmots at Finca Hartmann. They are among my all-time favorite birds, and a fitting mascot for great sustainable coffee.

Look for more profiles of birds found on coffee farms in the coming months. Many will be species that you can find much closer to home.

Murphy, T. G. 2006. Predator-elicited visual signal: why the turquoise-browed motmot wag-displays its racketed tail. Behavioral Ecology 17:547-553.

Murphy, T. G. 2007. Dishonest ‘preemptive’ pursuit-deterrent signal? Why the turquoise-browed motmot wags its tail before feeding nestlings. Animal Behaviour 73:965-970.

Murphy, T. G. 2007. Racketed tail of the male and female turquoise-browed motmot: male but not female tail length correlates with pairing success, performance, and reproductive success. Behavioral Ecology and Sociobiology 61:911-918.

Photo of a Blue-crowned Motmot via Wikimedia Commons.

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Revised on February 12, 2015

Posted in Birds and other biodiversity,Know Your Coffee Birds series

John July 10, 2008 at 7:55 pm

Do you have any idea why they build such long burrows?

Julie (BirdBarista) July 10, 2008 at 8:30 pm

I presume to avoid easy predation. I might also venture that there would be more temperature and moisture stability, maybe even structural stability if they get in under tree roots and away from sluffing along the face of whatever vertical surface they burrow into.

Brenton July 11, 2008 at 1:22 am

Thankyou Julie for your wonderful Blogsite. There is so much fascinating information. I love your new series on birds of the coffee farms. I buy East Timor Fairtrade Instant and beans to support one of our newest nations. Also, Fairtrade Beans from the Americas. Looking forward to all of your future Posts. Brenton in Adelaide, Australia.

BirdBarista (Julie) July 11, 2008 at 7:23 am

Thanks, Brenton! One of my earliest posts was about East Timor. Check it out here.

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