Black-crested Titmouse
Encyclopedia
The Black-crested Titmouse, Baeolophus atricristatus (also known as the Mexican Titmouse), is a small songbird
, a passerine
bird
in the tit
family Paridae. Once considered a subspecies of the Tufted Titmouse
(B. bicolor), it is now recognized as a separate species. It is native to southern Texas
, Oklahoma
, and east-central Mexico
. Vagrants
have been seen as far north and east as St. Louis, Missouri
.
The bird is 5.5 to 6 in (14 to 15.2 cm) long, with rusty flanks, gray upperparts, and a whitish belly. The male has a long, dark black crest that is usually erect, while the female's crest is not as dark. It is common wherever trees grow, whether they are deciduous, heavy timber, or urban shade trees. Its call peter, peter, peter is similar to that of the Tufted Titmouse, but shorter. Its diet consists of berries
, nut
s, spider
s, insect
s, and insect eggs.
The Black-crested Titmouse nests in tree cavities, telephone poles, fence posts, and bird boxes. The eggs, four to seven of which are laid in March or April, are white with reddish-brown spots.
Songbird
A songbird is a bird belonging to the suborder Passeri of the perching birds . Another name that is sometimes seen as scientific or vernacular name is Oscines, from Latin oscen, "a songbird"...
, a passerine
Passerine
A passerine is a bird of the order Passeriformes, which includes more than half of all bird species. Sometimes known as perching birds or, less accurately, as songbirds, the passerines form one of the most diverse terrestrial vertebrate orders: with over 5,000 identified species, it has roughly...
bird
Bird
Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...
in the tit
Titmouse
The tits, chickadees, and titmice constitute Paridae, a large family of small passerine birds which occur in the northern hemisphere and Africa...
family Paridae. Once considered a subspecies of the Tufted Titmouse
Tufted Titmouse
The Tufted Titmouse, Baeolophus bicolor, is a small songbird from North America, a species in the tit and chickadee family . The Black-crested Titmouse, found from central and southern Texas southwards, was included as a subspecies but is now considered a separate species B...
(B. bicolor), it is now recognized as a separate species. It is native to southern Texas
Texas
Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...
, Oklahoma
Oklahoma
Oklahoma is a state located in the South Central region of the United States of America. With an estimated 3,751,351 residents as of the 2010 census and a land area of 68,667 square miles , Oklahoma is the 28th most populous and 20th-largest state...
, and east-central Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
. Vagrants
Vagrancy (biology)
Vagrancy is a phenomenon in biology whereby individual animals appear well outside their normal range; individual animals which exhibit vagrancy are known as vagrants. The term accidental is sometimes also used...
have been seen as far north and east as St. Louis, Missouri
St. Louis, Missouri
St. Louis is an independent city on the eastern border of Missouri, United States. With a population of 319,294, it was the 58th-largest U.S. city at the 2010 U.S. Census. The Greater St...
.
The bird is 5.5 to 6 in (14 to 15.2 cm) long, with rusty flanks, gray upperparts, and a whitish belly. The male has a long, dark black crest that is usually erect, while the female's crest is not as dark. It is common wherever trees grow, whether they are deciduous, heavy timber, or urban shade trees. Its call peter, peter, peter is similar to that of the Tufted Titmouse, but shorter. Its diet consists of berries
Berry
The botanical definition of a berry is a fleshy fruit produced from a single ovary. Grapes are an example. The berry is the most common type of fleshy fruit in which the entire ovary wall ripens into an edible pericarp. They may have one or more carpels with a thin covering and fleshy interiors....
, nut
Nut (fruit)
A nut is a hard-shelled fruit of some plants having an indehiscent seed. While a wide variety of dried seeds and fruits are called nuts in English, only a certain number of them are considered by biologists to be true nuts...
s, spider
Spider
Spiders are air-breathing arthropods that have eight legs, and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other groups of organisms...
s, insect
Insect
Insects are a class of living creatures within the arthropods that have a chitinous exoskeleton, a three-part body , three pairs of jointed legs, compound eyes, and two antennae...
s, and insect eggs.
The Black-crested Titmouse nests in tree cavities, telephone poles, fence posts, and bird boxes. The eggs, four to seven of which are laid in March or April, are white with reddish-brown spots.