Bird Identifier
Laughing Falcon (Herpetotheres cachinnans)
raptor

Laughing Falcon

Herpetotheres cachinnans

A cream-headed, masked falcon specialized in hunting snakes, famous for its loud, laughing duets that ring across Neotropical woodlands.

Size
45-56 cm (18-22 in) long
Habitat
forest edge, savanna woodland, and semi-open country
Type
raptor

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Overview

The Laughing Falcon is a distinctive, large-headed falcon best known for two things: its striking appearance and its remarkably loud vocalizations. It has a creamy-buff head and underparts set off by a bold black facial mask that wraps around the head like a bandit's disguise, contrasting brown upperparts, and a barred tail. Locally known by names such as "guaco" that echo its call, this species is a snake specialist, one of the few raptors adapted to regularly hunt venomous snakes.

How to identify it

Key field marks

  • Large, rounded head with a bold black facial mask encircling the head.
  • Creamy-buff underparts and head.
  • Brown upperparts; barred tail.
  • Often perches upright and conspicuously on exposed branches or wires.

Similar species

No other Neotropical falcon shows this combination of a creamy head with a complete black facial mask; its distinctive shape, coloring, and loud calls make it readily identifiable.

Habitat & range

Laughing Falcons favor forest edge, savanna woodland, gallery forest, and semi-open country with scattered trees, avoiding both dense unbroken forest and completely open habitat. The species ranges from Mexico through Central America and across much of South America to northern Argentina. It is a non-migratory resident, generally found at lower to middle elevations.

Behavior & voice

Voice

One of the most recognizable calls of Neotropical woodlands: a loud, far-carrying series of notes often rendered as "wah-co, wah-co" or a laughing cackle, frequently given in duet by paired birds, giving rise to local names like "guaco."

Feeding

This species is a snake specialist, capturing snakes — including venomous pit vipers — by pouncing from a perch and dispatching them with bites to the head before swallowing them, often headfirst; it also takes lizards and, less often, other small vertebrates.

Nesting and breeding

Laughing Falcons do not build their own nest, instead using natural tree cavities, broken-off snags, or old nests of other birds. A single egg is typically laid, and both parents help provision the chick, feeding it largely on snakes brought back to the nest site.

Frequently asked questions

Why is it called the Laughing Falcon?

Its loud, far-carrying call, often given as a duet between paired birds, has a laughing or cackling quality that gives the species its name.

What does a Laughing Falcon eat?

Primarily snakes, including venomous species, which it kills with bites to the head; it also eats lizards and occasionally other small vertebrates.

Is the Laughing Falcon immune to snake venom?

It is not known to have special venom immunity; instead, it relies on hunting skill and quickly incapacitating snakes with precise bites to avoid being bitten itself.

Where does the Laughing Falcon nest?

It does not build its own nest, instead using tree cavities, broken snags, or old nests built by other birds.