House Wren

Troglodytes aedon

A plain brown bird with an effervescent voice, the House Wren is a common backyard bird over nearly the entire Western Hemisphere. Listen for its rush-and-jumble song in summer and you’ll find this species zipping through shrubs and low tree branches, snatching at insects. House Wrens will gladly use nestboxes, or you may find their twig-filled nests in old cans, boots, or boxes lying around in your garage.

Cool Facts

Photo taken from:
The Sibley Field Guide to Birds of Western North America by David Allen Sibley
  • The House Wren has one of the largest ranges of any songbird in the New World. It breeds from Canada through the West Indies and Central America, southward to the southernmost point of South America.
  • House Wrens nest inside tree holes and nest boxes. As the season progresses their nests can become infested with mites and other parasites that feed on the wren nestlings. Perhaps to fight this problem, wrens often add spider egg sacs into the materials they build their nests from. In lab studies, once the spiders hatched, they helped the wrens by devouring the nest parasites.
  • A House Wren weighs about as much as two quarters, but it’s a fierce competitor for nest holes. Wrens will harass and peck at much larger birds, sometimes dragging eggs and young out of a nest site they want – even occasionally killing adult birds. In some areas they are the main source of nest failure for bluebirds, Tree Swallows, Prothonotary Warblers, and chickadees.
  • For House Wren eggs, temperature inside the nest box can be critical to survival. If a sun-drenched nest box warms above about 106 degrees Fahrenheit for an hour, the eggs will begin to die. If a cold snap chills a nest below about 65 degrees Fahrenheit for more than a day it can also doom the eggs.
  • Male House Wrens returning north to breed in their first year are more likely to settle close to an established male than farther from it. Experienced males tend to settle farther apart. Young males may take clues from more experienced males about what areas are good nesting sites.
  • The oldest known House Wren was nine years old.

Description

  • Size & Shape

    Small and compact, with a flat head and fairly long, curved beak. Short-winged, often keeping its longish tail either cocked above the line of the body or slightly drooped.

  • Color Pattern

    Subdued brown overall with darker barring on the wings and tail. The pale eyebrow that is characteristic of so many wren species is much fainter in House Wrens.

  • Range Map
     
    Taxonomic Hierarchy

    Spotted_Sandpiper_AllAm

    © 2003 Cornell Lab of Ornithology
    Kingdom: Animalia
    Phylum: Chordata
         Subphylum: Vertebrata
    Class: Aves
    Order: Passeriformes
    Family: Troglodytidae
    Genus: Troglodytes
    Species: Troglodytes aedon
         Subspecies:
    • Troglodytes aedon aedon
    • Troglodytes aedon baldwini
    • Troglodytes aedon guadeloupensis
    • Troglodytes aedon mesoleucus
    • Troglodytes aedon parkmanii
    Sound
    Both males and females sing. Males often sing 9-11 times per minute during breeding season. Songs are a long, jumbled bubbling introduced by abrupt churrs and scolds and made up of 12-16 recognizable syllables. Females sing mainly in answer to their mates shortly after pairing up; their songs can include high-pitched squeals unlike any sounds males make.

    Identification and Information
    See Anatomy of a Bird
    Body
    • Length Range: 10-13 cm (4-5 in)
    • Weight: 11 g (0.4 oz)
    • Size: Very Small (3 - 5 in)
    • Color Primary: Brown
    • Underparts: Pale Gray
    • Upperparts: Brown
    • Back Pattern: Barred or banded
    • Belly Pattern: Solid
    • Breast Pattern: Solid
     
    Head
    • Bill Shape: All-purpose
    • Eye Color: Brown.
    • Head Pattern: No Data
    • Crown Color: Gray-brown
    • Forehead Color: Gray-brown
    • Nape Color: Gray-brown
    • Throat Color: White
    • Cere color: No Data
    Flight
    • Flight Pattern: Weak fluttering direct flight with rapid shallow wing beats.
    • Wingspan Range: 15-18 cm (6-7 in)
    • Wing Shape: Pointed-Wings
    • Tail Shape: Rounded Tail
    • Tail Pattern: Barred
    • Upper Tail: Brown with narrow black barring.
    • Under Tail: Brown with narrow black barring.
    • Leg Color: Brown
    Breeding
    • Breeding Location: Forest
    • Breeding Type: Monogamous, Polygamous
    • Breeding Population:
    • Egg Color: White with brown flecks
    • Number of Eggs: 5 - 9
    • Incubation Days: 13 - 15
    • Egg Incubator: Female
    • Nest Material: Sticks., Lined with hair, feathers, cocoons, and fine material.
    • Migration: Most migrate
    • Condition at Hatching: Naked, pink, and basically immobile, eyes closed, with a couple of dozen wispy down feathers scattered over back and head.

    Other Names

    Similar Species

    • Chivirín saltapared (Spanish)
    • Troglodyte familier (French)
    • Winter Wrens have almost no tail and a fairly bold eyebrow; they're smaller and darker than House Wrens.
    • Carolina Wrens and Bewick's Wrens both have very bold eyebrows. House Wrens are dingy on the breast where Carolina Wrens are warm brown and Bewick's are white.
    • Bewick's Wren's beaks are longer and straighter than a House Wren's. Other wren species can be separated by habitat: both the Marsh Wren and the Sedge Wren are birds of marshy reeds and grasses. Both are paler below, with more distinct eyestripes, than House Wrens.
    • Rock Wrens of the dry West are paler gray-brown above and whiter below than House Wrens, with buffy flanks and tail corners.

    Conservation Status

    Populations have increased over the long- and short-term across the continent.

     

     

     

     

     

    Habitat

    Sources used to Construct this Page:

    In summer, House Wrens are at home in open forests, forest edges, and areas with scattered grass and trees. Backyards, farmyards, and city parks are perfect for them. In winter they become more secretive, preferring brushy tangles, thickets, and hedgerows.
    • Ehrlich, P. R., D. S. Dobkin, and D. Wheye. 1988. The birder’s handbook. Simon & Schuster Inc., New York.
    • Johnson, L. Scott. 1998. House Wren (Troglodytes aedon), The Birds of North America Online (A. Poole, Ed.). Ithaca: Cornell Lab of Ornithology; Retrieved from the Birds of North America Online
    • Patuxent Wildlife Research Center Longevity Records
    Food
    Eats a wide variety of insects and spiders, including beetles, caterpillars, earwigs, and daddy longlegs, as well as smaller numbers of more mobile insects such as flies, leafhoppers, and springtails. Also eats snail shells, probably for the calcium they contain and to provide grit for digestion.
    Behavior
    Bubbly and energetic, just like their songs. Look for House Wrens hopping quickly through tangles and low branches and, in spring and summer, frequently pausing to deliver cheerful trilling songs.

    Adult Sexes Similar

    IMGP9116.jpg (530927 bytes)
    IMGP9117.jpg (533836 bytes)
    IMGP9118.jpg (527336 bytes)
    IMGP9119.jpg (528683 bytes)
    IMGP9115.jpg (535363 bytes)
    IMGP9038.jpg (606868 bytes)
    IMGP9037.jpg (616758 bytes)
    IMGP9039.jpg (607947 bytes)
    IMGP9120.jpg (529166 bytes)
    IMGP9121.jpg (527998 bytes)
    IMGP9124.jpg (527372 bytes)
    IMGP9125.jpg (533577 bytes)
    IMGP9122.jpg (527549 bytes)

    Additional Photos & Video

    Adult Sexes Similar

    IMGP9123.jpg (530599 bytes)      
    Videos
     
     
     
     

    All photos © 2008 Rick Swartzentrover - Free for non-profit use.

    Home     Bible     Photos     Hiking Photos     Cults     E-Books     Family Tree     Politics     E-mail