Ivory Detter
Millwood State Park

Millwood State Park is located in southwest Arkansas where two major migratory bird flyways intersect. Part of our park mission is to provide safe and enriching educational opportunities about park resources, and one of our most prominent resources is the wildlife protected here.  

Migratory birds of many colors and origins can be discovered by visitors to Millwood State Park each spring. Millwood Lake is classified as an Important Bird Area because it provides ideal mating and nesting habitat for a variety of migratory bird species. In the following images, one will observe spring migrants commonly found within the park each year. Remember, as the Greek storyteller, Aesop, once wisely stated, “It’s not only fine feathers that make fine birds.” 

Scissor-tail flycatcher perched on an electrical line.Scissor-tailed flycatcher (Tyrannus forficatus) 

Scissor-tailed flycatchers are amazing birds to behold. A male scissor-tailed flycatcher may have tailfeathers up to 15 inches in length! This species is often seen perched on electrical wires in between bouts of aerial acrobatics to catch flying insects to eat.  

Male blue grosbeak gripping the stem of wildflower for purchase. 

Female blue grosbeak among similarly colored foliage. Blue grosbeak (Passerina caerulea) 

Blue grosbeaks have large, striking beaks that are perfectly honed for their life as seedeaters. Male blue grosbeaks are a deep blue, while the females are mostly brown. Notice in the picture above how well the female blue grosbeak blends in with her surroundings.  

Male summer tanager   Summer tanager (Piranga rubra) 

Many people often assume that any red birds they see are northern cardinals; however, summer tanagers are another red species that is quite prevalent in Millwood State Park during the spring and summer months. These brightly colored birds spend winter months at tropical latitudes, then migrate as far north as Iowa to breed and raise their young. If you see one, then it is a male. The females of this species are yellow in color.  

Lone black-bellied whistling duck resting in a dead tree Black-bellied whistling duck (Dendrocygna autumnalis) 

Black-bellied whistling ducks are large ducks with stark, brightly colored bills and legs. This species is sometimes mistaken for geese because of their impressive size. True to their name, the black-bellied whistling duck makes a high-pitched whistle while in flight.  

A Baltimore oriole among ample foliage.  Baltimore oriole (Icterus galbula) 

Baltimore oriole males have a spectacular pop of bright orange and yellow color. Orioles have an unmistakable whistling song, which is typically heard before the bird is sighted. Watch for orioles at your hummingbird feeders; they love to stop in for a sip from time to time.  

A little blue heron hunting near the bank of a lake.Little blue heron (Egretta caerulea) 

Little blue herons are small wading birds that stalk small fish, frogs, and crustaceans along the banks of Millwood Lake. People who have not observed this bird in person may be surprised at the stark blue plumage. Note, this is a separate species than the often seen—and larger—great blue heron.  

Prothonotary warbler perched in a tree  Prothonotary warbler (Protonotaria citrea) 

Prothonotary warblers can be seen singing and defending their territory in great numbers along the banks in Millwood State Park in spring and summer. Though prothonotary warblers are small, this bird is not shy, and its conspicuous yellow plumage makes it a joy to observe.  

Male indigo bunting  Indigo bunting (Passerina cyanea) 

As the name suggests, male indigo buntings have a bright blue, showy blue plumage. The indigo bunting overwinters in Central America and the Caribbean and spends the summer breeding months as far north as Canada. This bird is one of Millwood State Park’s most common migrants and can usually be sighted with little effort. While we do also have eastern bluebirds here, you will usually know when you see an indigo bunting; their feathers are a more brilliant blue and they lack the buff and white breast markings of bluebirds.  

Green heron in the top of a dead tree with neck tucked in tightly 

Green heron with neck extended Green heron (Butorides virescens) 

The green heron’s plumage of green wing feathers outlined in gold, and their bright orange legs, give the bird a noteworthy appearance. Though green herons usually have their neck pulled in tightly against their body, they can extend their neck, nearly doubling their body length.  

three eastern kingbirds engaging in a territorial dispute  Eastern kingbird (Tyrannus tyrannus) 

Eastern kingbirds are a winter resident of South America and travel great distances to nest and breed as far north as Canada. Eastern kingbirds are quite aggressive when defending their territory, even against much larger birds. Due to the kingbird’s behavioral tendencies, they are easily observed.  

Migratory birds of many colors and origins can be discovered by visitors to Millwood State Park each spring. You can also look in your own backyard to see if any migratory birds found at Millwood State Park are passing through your area.