Photo by Adobe Stock • Subtle plumage differences, as well as habitat, behavior and seasonal presence, are factors in distinguishing the Louisiana waterthrush, pictured, from the closely related Northern waterthrush. The Louisiana waterthrush nests along fast-moving streams in the area while the Northern waterthrush does not breed in the region.

I’m always happy for the arrival of April because I know the month hails the arrival of some of my favorite birds. The roughly 50 species of New World warblers that occur in the Eastern United States have captivated me from the time I first picked up a pair of binoculars. The warblers offer color, energy, complex songs and much more for the bird enthusiast to enjoy.

The month started out with my first sighting of a purple finch for the year. The finch must have been a harbinger of birds to come because in quick succession I observed many early migrants, including brown thrasher, blue-headed vireo, blue-gray gnatcatcher and chipping sparrow, as well as several warblers.

Photo by Bryan Stevens • A study of the facial pattern of a female purple finch helps contrast her from similar female house finches. Again, the notched tail is also a good indication of the bird’s identity.

The first warbler to arrive in the woods around my home this year was a singing male black-throated green warbler. Three others — black-and-white warbler, yellow-throated warbler and Louisiana waterthrush — followed quickly after my sighting of the black-throated green warbler.

The Louisiana waterthrush stood out among these early observations. This warbler is a specialist of creeks and streams, and my sighting took place near a roaring creek swollen by a rainy spring. This water-loving warbler also has a loud, ringing song that can still be hard to hear because of the fact the bird is usually near the background noise of rushing water.

Photo by Bryan Stevens • A black-and-white warbler creeps over the bark of a pine in search of insect prey.

While many warblers have shown signs of decline in recent years, the Louisiana waterthrush appears to have bucked that trend. According to the website, “All About Birds,” Louisiana waterthrush populations were stable between 1966 and 2015, based on statistics from the North American Breeding Bird Survey. Partners in Flight, a network of organizations engaged in all aspects of avian conservation, estimates a global breeding population of 360,000, with almost all of those individuals spending at least part of the year in the United States. About a quarter of the population retreats into Mexico during the winter season. The rest winter in Florida and some of the Gulf Coast states, as well as the islands of the Caribbean.

While most songbirds are fortunate to survive two or three years in the wild, at least one Louisiana waterthrush lived to the age of at least 11 years and 11 months. The bird, a male, was seen in New Jersey in the wild and identified by a band on one of his legs. He had been banded in the same state, according to the website, “All About Birds.”

The waterthrushes are the only two species in the genus Parkesia, so named to honor American ornithologist Kenneth C. Parkes, who was for many years curator of birds at Carnegie Museum of Natural History. The common name of the Louisiana waterthrush is not a very apt one, as this bird does not have any special affinity for the state of Louisiana. Someone collected some of the early specimens of the Louisiana waterthrush in its namesake location, and the name has stuck through the years.

The only other warbler in the genus Parkesia is the Northern waterthrush which, unlike its relative, likes to live near quiet, sedate pools, ponds and bogs, not rushing streams.

Hummingbirds getting closer to region

Tommy and Virginia Curtis of Smithville, Tennessee, reported their first ruby-throated hummingbirds of the spring on the email group, “TN-Birds.” The hummingbird arrived on April 7.

“We had two male ruby-throated hummingbirds arrive late Sunday afternoon,” they wrote in their email. “That is a little later than the April 1 arrival times in the past.”

The two visitors had apparently agreed to co-exist.

“So far they are eating peacefully, and neither is attacking or dominating the one feeder,” the couple reported. “We keep wondering when the white-throated sparrows and dark-eyed juncos plan to leave, as we have had many of them all winter.”

Photo by Skeeze/Pixabay • A white-throated sparrow perches on a branch to sing its easily recognizable song. Many Americans translate the sparrow’s song as “Ol’ Sam Peabody, Peabody, Peabody.”

The couple also shared that they have been hosting a small flock of purple finches. “They normally don’t show up at our feeders unless there is snow on the ground, but we have enjoyed seeing them daily,” they wrote in their email.

Of course, the Curtises live in DeKalb County in Middle Tennessee. As of press time, I still haven’t received any reports of hummingbirds arriving in East Tennessee or Southwest Virginia. I’m confident these tiny winged gems will arrive soon. I hope to update on hummingbird arrivals in next week’s column.

Remember to share your hummingbird sighting by emailing me the date and time of the sighting to ahoodedwarbler@aol.com. I’m also on Facebook should anyone want to contact me through that social media platform.

Photo by Bryan Stevens • A male ruby-throated hummingbird perches near a feeder that he is ready to defend from all comers.