Achichilique común

Identification

The western grebe is the largest North American grebe, measuring 55–75 cm long with a wingspan of 79–102 cm and weighing 795–2,000 g. Its most striking features are its black-and-white plumage, long slender swan-like neck, and distinctive red eyes. The bird has a straight greenish-yellow bill and black markings around the eyes. It can be easily confused with Clark's grebe, which shares similar size, behavior, and habitat, though the two species are known to interbreed. Key differences include Clark's grebe having whiter flanks, a paler gray back, white (rather than black) eye patches, and an upturned bright yellow bill. The downy young of western grebes are grey, while Clark's young are white.

Range & Habitat

The western grebe is widespread throughout western North America, with no single area of particular abundance. This species is found across a broad geographic range extending from western Canada and the United States (including California and Utah) south to Mexico. Northern populations migrate west to coastal ocean waters in winter, while birds in the southwest and Mexico may remain as permanent residents year-round.

Western grebes nest in colonies of hundreds on large inland lakes, sometimes using coastal marshes. They prefer bodies of water that combine marsh vegetation with open water. Nests are constructed from plant debris and sodden materials, built by both sexes beginning roughly from late April through June and continuing throughout laying and incubation.

Behaviour & Diet

Western grebes are renowned for their elaborate and synchronized courtship displays, among the most complex in waterbird species. The Rushing Ceremony—also called a water dance—is the most frequent display for forming pair-bonds. In this spectacular behavior, two birds rear up and patter across the water's surface with stiff, lifted wings and curved necks. This display occurs in same-sex pairs or between males and females; competing males may perform Rushing together to attract female attention, with the winner continuing with his chosen mate.

Following pair formation, birds perform the Weed Ceremony, where mates bob their heads in water, dive in place, and resurface while holding weed in their beaks. This precedes mating and nest-building activities. The Greeting Ceremony involves dip-shaking (dipping the head while rapidly waggling the bill side to side with conspicuous water splash) and bob-shaking. After breeding, male western grebes feed their mates as part of mate-feeding behavior.

Best Time & Places to See It

The breeding season, from roughly late April through June, is the ideal time to observe western grebes, particularly if you wish to witness their famous courtship displays. Large inland lakes in western North America offer the best viewing opportunities, especially those with mixed marsh vegetation and open water. Coastal ocean areas are particularly good for observing northern populations during winter months.

Photography Tips

Photographing western grebes during their breeding season courtship displays offers spectacular opportunities. The Rushing Ceremony, with birds pattering across water in an upright posture with wings lifted and necks curved, provides dynamic action shots. Early morning light on lakes is ideal for capturing the contrast between their black-and-white plumage and for highlighting their distinctive red eyes. Their large size and gregarious nesting behavior in colonies of hundreds means you can often find multiple subjects within a single frame.