Fast Facts
- Scientific Name: Icterus galbula
- Common Name: Baltimore Oriole, Northern Oriole
- Lifespan: 10-12 years
- Size: 6.5-8 inches
- Weight: 28-42 grams
- Wingspan: 3.5-4 inches
- Conservation Status: Least concern
Baltimore Oriole Identification
male and female Baltimore orioles look very unlike. Males have a black hood, back, and throat over boldface orange underparts and buttocks, though some birds are pale and may look more jaundiced than orange. The yellow-orange tinge extends onto the shoulder in a slurred bomber over black wings. Wings have a single white banish and white feather border. The black tail has yellow or orange underneath. alternatively of total darkness, females show olive-brown coloration and more mottle. Females are more likely to have lighter scandalmongering coloration where the males show orange, and females have two whiten wing bars. As female age, their color becomes black, but they do not show as discrete of a hood as males. For both genders, the eyes are black and the legs and feet are black-grey. Juveniles look exchangeable to adult females, and youthful males will appear dirty and mottled as they mature into their pornographic feather when they are just over a class old .
Baltimore orioles have a distinctive two-pitch undulating slow warble, though the speed of the song may change during one shout. other calls include high chips and tweedle adenine well as a rapid dry rattle .
Jen Goellnitz / Flickr / Used With Permission
River Wanderer / Flickr / Used With Permission
Larry Henessy / Flickr / Used With Permission
Habitat and Distribution
Baltimore orioles are popular give and summer birds in open deciduous forests and riparian areas in the eastern United States american samoa well as in suburban parks, orchards, and yards. Populations extend as far west as the Great Plains and eastern Dakotas, Nebraska, Kansas, Oklahoma, and Texas, american samoa well as the southerly one-half of eastern canadian provinces .
migration Pattern
These colored songbirds are complete migrants, leaving their spring and summer breeding image for a wholly different location in the fall and winter. Baltimore orioles migrate to Central and South America, though limit populations spend winters in Florida, along the edge of the southeast United States, and along the Gulf Coast of Mexico .
behavior
These orioles can be very shy, lonely birds for most of the year, though after the nesting season they are likely to appear in pairs or minor mix flocks, peculiarly while foraging in the fall and winter .
Diet and Feeding
Baltimore orioles feed in shrub, bushes, and trees, hunting for insects or picking through flowers. largely frugivorous, these birds eat a across-the-board assortment of fruit, including berries, but are particularly attracted to oranges. Caterpillars, spiders, and other insects, a well as nectar, are besides separate of their diet. In the backyard, they prefer feeding stations away from the busiest areas, preferably in a shadow area near plug tax shelter .
Nesting
Baltimore orioles are monogamous birds that pair together after elaborate courtship rituals that include tail and wing bedspread displays and bowing to show off feather colors. Wing flicker is often separate of these displays ampere well. The nest is a dangling pouch woven from thin establish fibers, animal fur, thread, string, and haircloth, and is lined with grass or wool. The female builds the nest, and it is positioned 25-35 feet above the ground, though some can be found much higher. Almost all Baltimore new world oriole nests are found in deciduous trees .
Where the Baltimore new world oriole ’ randomness range overlaps with the Bullock ’ second old world oriole, interbreeding and hybridization is common. These birds are casual hosts to brown-headed cowbird eggs but are normally able to recognize the unwanted egg and remove it from their nest .
Eggs and Young
A mated pair of Baltimore orioles will produce one grizzle of 3-7 egg-shaped, grey-white or pale blue eggs per year. The egg picture colored blackish-brown blotches or squiggles at the large conclusion. The female new world oriole will incubate the eggs for 12-14 days. Both parents feed the chicks for an extra 12-14 days until the young birds can safely leave the nest .
Baltimore Oriole Conservation
While these orioles are not threatened or endangered, their populations are lento declining. Habitat loss, peculiarly in their winter roll, is a distinct problem, but supporting shade-grown coffee and bird-friendly cocoa can help preserve that habitat. Overuse of insecticides in fruit plantations is another problem, both because the worm populations are essential to orioles ‘ diets and pesticides on fruit could lead to accidental poison. In some areas, these birds may be considered a plague in fruit plantations and could be persecuted .
Tips for Backyard Birders
Though shy, Baltimore orioles will promptly come to yards that provide their front-runner foods, including grapeshot jelly, orange halves, nectar, and suet. Birders should avoid spraying pesticides that can eliminate insects as a food source, and hanging hair or short string sections can help attract orioles to nest nearby. Adding a fruit corner to the yard is another means to help attract these birds, peculiarly with cherries or mulberries .
How to Find This Bird
Despite its brilliant tinge, Baltimore orioles can be amazingly difficult to find in the field because they are relatively hermit. Visiting fruit-rich habitats such as orchards and gardens can increase a bird watcher ‘s chances of finding a Baltimore new world oriole. late summer, after the breed season, is the best fourth dimension to see Baltimore orioles when populations are larger with newly-hatched birds and mature birds are nobelium long as close about nesting .
Baltimore Orioles in Culture
The Baltimore new world oriole is the state of matter shuttlecock of Maryland, but it has more of a connection to Maryland than merely being found in the submit. The bird is named for the colored coat of arms carried by George Calvert, the foremost Lord Baltimore in the seventeenth century, who was the lord charged with chartering what would become Maryland. The Baltimore new world oriole was formally designated as Maryland ‘s state boo in 1947 .
Of course, the boo is besides popular as a mascot, most notably with the Baltimore Orioles major league baseball team. The officially designated Oriole Bird “ hatched ” on April 6, 1979, and has been the team ‘s playfulness feathered emblem ever since.
explore More Species in This Family
All orioles can be fascinate birds, and interest birders will besides want to check out exchangeable birds such as the Venezuelan troupial, which looks about identical to the Baltimore old world oriole .

I am broadly interested in how human activities influence the ability of wildlife to persist in the modified environments that we create.
Specifically, my research investigates how the configuration and composition of landscapes influence the movement and population dynamics of forest birds. Both natural and human-derived fragmenting of habitat can influence where birds settle, how they access the resources they need to survive and reproduce, and these factors in turn affect population demographics. Most recently, I have been studying the ability of individuals to move through and utilize forested areas which have been modified through timber harvest as they seek out resources for the breeding and postfledging phases. As well I am working in collaboration with Parks Canada scientists to examine in the influence of high density moose populations on forest bird communities in Gros Morne National Park. Many of my projects are conducted in collaboration or consultation with representatives of industry and government agencies, seeking to improve the management and sustainability of natural resource extraction.