White pelicans extend their Great Lakes range, study finds


American white pelican Ontario. Image: Scott Butner, Government of Ontario

By Eric Freedman

The American white pelican has established a nest-hold in western Lake Erie for the first time, with prospects of future territorial expansion into lakes Huron and Ontario, according to a new study.

The species “is undergoing a dramatic expansion of its breeding range in North America,” the study published in the journal Ontario Birds said. “The nesting on Lake Erie, so far from the colony sites in Lake Michigan and Lake Superior, seems unusual. Why such a large dispersal from the nearest breeding colony 550 km (340 miles) away?”

Historically, the birds breed in the Prairie provinces, western Minnesota, extreme northwestern Ontario, North Dakota and South Dakota. Elsewhere in the Great Lakes region, the birds also nest at Lake of the Woods on the Ontario-Minnesota border and at Ontario’s Lake Nipigon and Lac Seul.

Now they’re spreading eastward.

American white pelican flying. Image: Ingrid Taylar, U.S. Fish & Wildlife Service

That distance “is and is not unusual,” said study co-author D.V. Chip Weseloh, a retired Great Lakes waterbird specialist with the Canadian Wildlife Service. “Pelicans are strange birds and will range far and wide hundreds of miles to feed,” a feat documented with radio transmitters.

“They do have a reputation of wandering widely. Within that species, going 500 miles isn’t that usual,” Weseloh said.

With its 9-foot wingspan, the American white pelican is one of North America’s largest birds and feeds primarily on fish, according to the Audubon Society.

The overall population declined through the first half of the 1900s but has grown substantially since the 1970s. It’s protected under the Migratory Bird Treaty Act, and the International Union for Conservation of Nature’s Red List categorizes it as a species of least concern.

Adults have no major predators, although bald eagles sometimes kill young pelicans, Weseloh said.

The new study called the American white pelican “a rare vagrant” to western Lake Erie until 2014, when sightings became more common. In 2016, researchers discovered eggs and nests on Big Chicken Island and Middle Sister Island in Canadian waters, confirming their breeding status in Lake Erie.

It was the first known nesting for the species in the lower Great Lakes.

Scientists combined visits to the islands with offshore photographs.

For example, while criss-crossing Middle Sister Island to survey cormorants, researchers “came across 24 abandoned pelican nests with cold eggs and/or eggshells,” the study said. “The trees and underbrush were dense enough that adult pelicans would have had to walk in from the beach to access their nests in the forest.”

The discovery of the nests was happenstance, Weseloh said.

Study co-author David Moore of the Canadian Wildlife Service “was just doing normal routine monitoring of cormorants” on Middle Sister and stumbled on this abandoned pelican colony, he said.

As for Big Chicken, independent ornithology researcher V. Robert Tymstra had spotted pelicans in the area. He then followed up on the sightings by chartering a motorized Zodiac to scout out the island, according to the study, which he co-authored. The other authors were independent researcher James Ludwig and Doug Crump of Carleton University.

Big Chicken is a small, barren, low-lying cobblestone island. Middle Sister is larger and heavily forested. Herring gulls and cormorants regularly nest on both. Both are west of Pelee Island, the lake’s largest island a popular tourism spot.

As for further territorial expansion, the study says it is “perhaps only a matter of time” before American white pelicans start nesting in Lake Ontario and Lake Huron. “Both of those lakes have seemingly very similar habitat, remote small rocky islands with other colonial waterbirds.”

The pelican nests almost exclusively on islands, and “there are oodles of potential nest sites in Lake Huron, Weseloh said, although the stock of some fish has crashed in that lake. Lake Ontario also has islands suitable for nest, along with ample food supplies.

Although pelicans and cormorants “both eat whatever they can catch” and compete for some of the same fish species, they hunt in different ways, he said. Cormorants dive for their prey while pelicans herd or shepherd their prey into shallow waters and “pick them off.”

63 thoughts on “White pelicans extend their Great Lakes range, study finds

  1. One lone White Pelican has arrived in Southampton, Ontario, on Lake Huron on the 24th or 25th of October, 2022. Although we have lived here for over 14 years, we have never seen one here on the lake, before. This was posted on Facebook and one other person did state they’d seen one here previously. He didn’t elaborate. Perhaps this one was blown off course after some heavy rains and winds last week. We hope he finds his family and a warm place for the winter months.

  2. Flock of 80 just landed western basin near Maumee Bay State Park. First siting in 12 years we’ve been located here.

  3. On Friday, June 3, 2022, I saw a flock of five adults flying over the beach on the North shore of Lake Erie, due North of Middle Sister Island.

  4. Just saw 7 in V-formation flying southward down the Trenton Channel between the toll and pay bridges to Grosse Ile. Amazing sight, they all briefly landed in the river, appeared to be fishing maybe? Then another amazing thing happened. A bald eagle that was in a tree just south of our house flew into the group of pelicans on the water and snagged out a fish of his own! So cool to see this. May 20, 2022.

  5. About five just spotted flying over a lobdell lake in Fenton, about 20 miles south of Flint. May19,2022

  6. During a recent walleye fishing trip (May 2022) I observed 20 or so white pelicans south of Lake Erie Metropark, near the mouth of the Huron River (South Rockwood, MI) Amazing site…

  7. Saw 10 flying in V formation in East Jordan, Michigan on May 11, 2022.

  8. Saw 10 flying in V formation while getting ice cream at Marty’s in East Jordan, MI today, May 11, 2022. Took a picture, as I said to myself, those aren’t geese, and they’re white, but they aren’t swans. Had no idea there were pelicans in Michigan. Ran it through a bird identifier app and was amazed! Have also seen one flying on Erie Beach in Erie, MI, but did not know what it was. How cool! “Manny look at the pelican! Fly pelican!” -Tony Montana in Scarface

  9. We saw a tight flock of 20 rising and falling in synchrony on our way to Maumee Bay State Park from Metzger Marsh on May 9, 2022. It was beautiful to see as the white of their wings flashed on and off as the wing surface broadened or thinned to an edge with their movement. Graceful and spectacular.

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