Hutton’s Vireo
At a Glance
             In woods of the Pacific Coast and the Southwest, this little vireo hops about actively in the oaks. The bird bears a surprising resemblance to the Ruby-crowned Kinglet (which is often more common in the same woods in winter); it even twitches its wings in kinglet style when it is excited. Hutton's has the most monotonous song of all the vireos, a single note repeated over and over. 
          
          
             All bird guide text and rangemaps adapted from  by Kenn Kaufman© 1996, used by permission of Houghton Mifflin Harcourt Publishing Company. All rights reserved. 
          
        
        Category      
      
        Perching Birds, Vireos
      
    
        IUCN Status      
      
        Least Concern
      
    
        Habitat      
      
        Arroyos and Canyons, Desert and Arid Habitats, Forests and Woodlands, High Mountains, Shrublands, Savannas, and Thickets
      
    
        Region      
      
        California, Northwest, Southwest, Texas, Western Canada
      
    
        Behavior      
      
        Direct Flight, Flitter, Rapid Wingbeats
      
    
        Population      
      
        2.700.000
      
    Range & Identification
Migration & Range Maps
     Mostly a permanent resident, but a few show up in fall and winter along lowland streams where the species is not present in summer. 
  
  
Description
     4 1/4-4 3/4" (11-12 cm). Compact and chunky, with eye-ring and wing-bars. Has thicker bill than Ruby-crowned Kinglet, and different wing pattern, lacking the black bar behind the second white wing-bar. Also see Cassin's Vireo. 
  
  
        Size      
      
        About the size of a Sparrow
      
    
        Color      
      
        Black, Gray, Green, White, Yellow
      
    
        Wing Shape      
      
        Rounded
      
    
        Tail Shape      
      
        Notched, Square-tipped
      
    Songs and Calls
     Loud short whistles and chatter. A monotonous 2-part phrase, either up-slurred or down-slurred: chu-whe, chu-wee or che-eer, che-eer. Call is a harsh chit-chit. 
  
  
        Call Pattern      
      
        Falling, Flat, Rising
      
    
        Call Type      
      
        Buzz, Chirp/Chip, Whistle
      
    Habitat
     Woods and adjacent brush; prefers oaks. Breeds in oak and pine-oak forests, preferring evergreen oaks, or in tall chaparral. Also lives in mountain canyons in sycamores, maples, and willows along streams. In Pacific states, may be found in the shrubby understory of humid Douglas-fir and redwood forests. Winters in breeding habitat, also sometimes in thickets along lowland streams. 
  
  
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    Behavior
Eggs
     4, sometimes 3-5, rarely fewer. White with brown specks near larger end. Incubation is by both parents, 14-16 days. Cowbirds often lay eggs in nests of this species. 
  
  
Young
     Both parents feed nestlings. Young leave the nest at about 14 days of age. 
  
  
Feeding Behavior
     Forages in trees and shrubs by hopping from twig to twig, pausing to peer about as it searches for insects. Often hovers momentarily to pick an item from the foliage. 
  
  
Diet
     Mostly insects, some berries. Diet is not known in detail, but feeds mainly on insects (including some that seem large for small size of bird) such as caterpillars, beetles, and crickets, as well as spiders. Also eats some berries and small fruits, and some plant galls. 
  
  
Nesting
     Male sings almost constantly during breeding season to defend nesting territory. In courtship display, male approaches female, fluffs out his plumage, spreads his tail, and gives a whining call. Nest: Often in oak, sometimes in coniferous tree, usually 6-25' above the ground. Round cup-shaped nest is supported by the rim woven onto a forked twig. Nest (built by both sexes) is made of bark fibers, lichens, moss, grass, bound together with spiderwebs, lined with fine grass. Outside of nest often covered with whitish plant down and spider egg cases. 
  
  
Conservation
Conservation Status
     Fairly common, numbers apparently stable. 
  
  
Climate Threats Facing the Hutton's Vireo
    Choose a temperature scenario below to see which threats will affect this species as warming increases. The same climate change-driven threats that put birds at risk will affect other wildlife and people, too.
  
  
 
       
       
       
       
      