This is bird note.

On a winter morning in Costa Rica, a pair of Bé-Rennes sings a brisk duet just before sunrise. Though the Bérens stay well hidden in the underbrush, they have all the decibels

they need to make themselves known. A breeze waffs in off the Caribbean sea less than a mile away across the tropical low land forest, fluttering the leaves of a tall giant fig tree hung with flowering bermiliads. Perched in the upper canopy, a small group of

keel-billed tucans calls out. Their comically large bills are painted in lime green, turquoise, orange, and magenta.

In a nearby tree, purple-throated fruit crows add their voices to the sunrise chorus.

The male fruit crows are jet black with reddish purple throats.

Alongside the fruit crows, a huge oriole-like bird pivots upside down and belts

out an electrifying series of notes.

It's a male Montezuma or a pendola with one of the most distinctive voices in the

tropics. Finally, a bright-rumped Attila calls from its perch hidden deep in the canopy.

The Attila will repeat its maniacal phrases until well after sunrise,

reminding us again and again that it's morning in Costa Rica.