Bird Fact Friday—Jacamars

Adapted from pages 254 to 255 of Birds of Central America:

Jacamars are large-billed birds found mainly at middle levels in humid broadleaf forests. With long, pointed bills and long, graduated tails, jacamars present a distinctive silhouette as they perch motionless in the open. 

Male and female Great Jacamars (green birds to the left, respectively) as illustrated by Dale Dyer. Also illustrated: the Gray-checked Nunlet (top right corner) and a Barred Puffbird (bottom right).

The Rufous-talled Jacamar (Galbula ruficauda) is the most common and widespread, and is frequently found in lowlands and foothills. They have long, graduated tails and long, near-straight bills (typically upraised). It is metallic green above and cinnamon-rufous below. Males have white throats; females have buff throats. These birds usually gather near gaps or edges, while pairs or solitary birds forage by sallying from exposed perch. Their song begins with several sharp, staccato beeks or eeks, before suddenly accelerating into a very fast beek beek beek beebeebeebeebeebeebee. Calls also include emphatic, two-syllable phrases that may be repeated bee-yuk or ee-yuk, or a sharp whistle that ends abruptly (wheeeeert). 

Meanwhile, the Great Jacamar (Jacamerops auerues) is an uncommon to and a rare resident of the Caribbean lowlands and foothills. It’s identified by its large and bulky size and long, graduated tail, typically held raised. Males have white on lower throats, while the underparts of both include breast cinnamon-rufous. They sit motionless for long periods of time, then suddenly reverse position on perch. These birds are often quiet, and call in a loud, clear, high-pitched whistle (keeeyeeeeeeew!) that drops in pitch and is slightly trilled the end. 

Finally: the Dusky-backed Jacamar (Brachygalba salmoni) is a small, dark bird with a long, pointed bill and blackish, square-tipped tail. Upperparts and breast are a dark, glossy green; belly and crissum are rufous. The throat is variably white or buff white. It is smaller and darker than Rufous-tailed Jacamar. It has a shorter tail. They are often found along rivers, in pairs of solitary, perched on high, exposed snags. To feed, they quickly capture flying insects and then return to the same or nearby perch from which they came. They are usually quiet, but have a high-pitched, thin call that sounds like a psee, occasionally repeated in a long series. 

 

Birds of Central America
Belize, Guatemala, Honduras, El Salvador, Nicaragua, Costa Rica, and Panama

By Andrew C. Vallely and Dale Dyer

Birds of Central America is the first comprehensive field guide to the avifauna of the entire region, including Belize, Guatemala, Honduras, El Salvador, Nicaragua, Costa Rica, and Panama. Handy and compact, the book presents text and illustrations for nearly 1,200 resident and migrant species, and information on all rare vagrants. Two hundred sixty detailed plates on convenient facing-page spreads depict differing ages and sexes for each species, with a special focus on geographic variation. The guide also contains up-to-date range maps and concise notes on distribution, habitat, behavior, and voice. An introduction provides a brief overview of the region’s landscape, climate, and biogeography.

The culmination of more than a decade of research and field experience, Birds of Central Americais an indispensable resource for all those interested in the bird life of this part of the world.

  • Detailed information on the entire avifauna of Central America
  • 260 beautiful color plates
  • Range maps, text, and illustrations presented on convenient facing-page spreads
  • Up-to-date notes on distribution supported by an extensive bibliography
  • Special focus on geographic variation of bird species