Last updated: August 12, 2024
Thing to Do
Harlequin Duck

NPS photo by Jacob Frank.
Histrionicus histrionicus
The harlequin duck is one of Glacier’s more colorful characters. Adult males have blue-gray to black necks and backs with chestnut sides and crowns. They also have white bars and spots on their sides, necks, and faces. Adult females are generally brown with a white spot on the cheek. These ducks are distinct for their mouse-like squeak.
One-quarter of Montana’s harlequin duck broods are born in Glacier National Park. These birds have a low reproductive rate and are very susceptible to habitat loss and degradation. Because of these characteristics, they are listed as a Species of Concern in the state of Montana. At all times, but especially during the nesting season, birds should be viewed from a distance. Getting too close to wildlife can stress any animal, and human proximity sometimes causes a bird to abandon its nest.
The harlequin duck is one of Glacier’s more colorful characters. Adult males have blue-gray to black necks and backs with chestnut sides and crowns. They also have white bars and spots on their sides, necks, and faces. Adult females are generally brown with a white spot on the cheek. These ducks are distinct for their mouse-like squeak.
One-quarter of Montana’s harlequin duck broods are born in Glacier National Park. These birds have a low reproductive rate and are very susceptible to habitat loss and degradation. Because of these characteristics, they are listed as a Species of Concern in the state of Montana. At all times, but especially during the nesting season, birds should be viewed from a distance. Getting too close to wildlife can stress any animal, and human proximity sometimes causes a bird to abandon its nest.
Details
Activity
Birdwatching
Pets Allowed
No
Activity Fee
No
Entrance fees may apply, see Fees & Passes information.
Location
Upper McDonald Creek
In the spring and summer, Upper McDonald Creek just might be the best place in the world to spot a harlequin duck. In the winter, these birds migrate to the coasts and calm bays of the North Pacific Ocean.
Reservations
No
Season
Spring, Summer
Time of Day
Any Time
Accessibility Information
In addition to driving the Going-to-the-Sun Road and other park roads, the Running Eagle Falls Nature Trail, the Swiftcurrent Nature Trail, and the Trail of the Cedars are three of Glacier’s most accessible areas.
Improvements in accessibility are being made each year, and with a bit of pre-planning, all visitors can find Glacier to be a rewarding experience. Details on Glacier's accessible facilities and services can be found on the park's website nps.gov/glac/planyourvisit/accessibility.htm.
Improvements in accessibility are being made each year, and with a bit of pre-planning, all visitors can find Glacier to be a rewarding experience. Details on Glacier's accessible facilities and services can be found on the park's website nps.gov/glac/planyourvisit/accessibility.htm.