White-faced Ibis

Identification

The white-faced ibis is a medium-sized wading bird measuring 18.1-22.1 inches in length with a wingspan of 35.4-36.6 inches and weighing 15.9-18.5 ounces. In non-breeding plumage, it closely resembles the glossy ibis but tends to be slightly smaller with warmer-colored plumage. The most distinctive feature of breeding adults is their pink bare face bordered with white feathers, combined with a grey bill and bright red legs. Red eyes year-round further distinguish this species from the glossy ibis, which has dark eyes. Juveniles of both species are nearly identical, making field identification challenging for young birds. The white-faced ibis's curved bill is perfectly adapted for its probing feeding style.

Range & Habitat

The white-faced ibis has a broad range across the Americas. Breeding populations extend from southwestern Canada and the western United States through Mexico, Central America, and into South America from southeastern Brazil and southeastern Bolivia south to central Argentina and along the central Chilean coast. The species is rated as Least Concern by the IUCN, with a global population estimated at 1.2 million individuals in 2012 and increasing. Two distinct subspecies inhabit North and South America, east of the Andes Mountains, with no migration or interchange between them.

The species breeds colonially in marshes with dense vegetation, preferring nesting sites in bulrush, cattails, shrubs, and short trees where they construct nests from reeds. Within North America, birds breeding in northern regions migrate southward seasonally—for example, breeding populations from northern California and southern Oregon winter in southern California, Mexico, or Central America, while some Wyoming breeders overwinter in Texas and Gulf of Mexico coastal regions.

Behaviour & Diet

White-faced ibises are gregarious birds that breed in colonies within marsh habitats. They typically lay three or four blue-green eggs per breeding attempt. The species is highly dependent on wetland ecosystems for both feeding and nesting, making it vulnerable to habitat alterations.

These birds are specialized probers, using their curved bills to search for prey in mud and shallow water. Their diet is remarkably varied, encompassing many invertebrates including insects, leeches, snails, crayfish, and earthworms, as well as vertebrates such as fish, newts, and frogs. In captivity, white-faced ibises live up to fourteen years on average, while wild birds typically live nine years, with the oldest recorded individual reaching fourteen years and six months.

Best Time & Places to See It

The white-faced ibis can be encountered year-round across much of its range, as wintering grounds extend from southern California and Louisiana south through its entire breeding range. During breeding season, seek colonies in marshes from the western United States through Mexico and Central America, and in South American wetlands from southeastern Brazil through central Argentina and coastal Chile. Migration periods offer opportunities to observe birds moving between northern breeding grounds and southern wintering areas, particularly in transitional regions like Texas and the Gulf of Mexico coast.

Photography Tips

Photograph breeding adults during spring and early summer to capture their most distinctive plumage: the characteristic pink bare face bordered by white feathers, grey bill, and bright red legs and eyes. Colonial breeding sites provide opportunities for compelling group compositions. Early morning light illuminates the birds' subtle warm plumage tones most effectively. When photographing feeding birds, focus on capturing their probing behavior in shallow marsh water. Exercise caution and patience around nesting colonies to avoid disturbance, and use longer telephoto lenses to maintain distance while obtaining detailed images of facial features and breeding colors.