Montana Field Guide

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Montana Field Guides

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- Kingdom - Animals - Animalia
  - Phylum - Vertebrates - Craniata
    - Class - Birds - Aves
      - Order - Songbirds - Passeriformes
        
        Family - Blackbirds - Icteridae
        
        Species - Baltimore Oriole - Icterus galbula

Baltimore Oriole - Icterus galbula

Global Rank: G5
State Rank: S4B

Agency Status
USFWS: none
USFS: none
BLM: none
CFWCS Tier: 2
PIF: none

General Description

Species sexually dimorphic in size and plumage. Males have black head, upper mantle,wings and tail, with the rest of upper body orange; slim white stripe along wing. Females sometimes have dark olive-colored upper mantle and head, along with a paler tail and smaller size.

General Distribution

Montana Range

Western Hemisphere Range

Summary of Observations Submitted for Montana

Number of Observations: 121

(Click on the following maps and charts to see full sized version) Map Help and Descriptions

Relative Density

Recency

Breeding
(direct evidence "B")

Breeding
(indirect evidence "b")

No evidence of Breeding
(transient "t")

Overwintering
(regular observations "W")

Overwintering
(at least one obs. "w")

(Records associated with a range of dates are excluded from time charts)

Habitat

Species found in open woodlands, woodland margins, hedgerows and urban parks. Winters in woodlands and hedges.

Food Habits

In summer and breeding months, diet consists of catepillars, fruits, insects and spiders. During the winter, diet consists mainly of nectar, small fruit and insects.

Reproductive Characteristics

Clutch consists of 4-5 eggs incubated for 12-14 days. Nests built in conifer trees, attached at rim of drooping branches; made of plant fiber, grass and sometimes animal hair.

Citation for data on this website:
Baltimore Oriole — Icterus galbula. Montana Field Guide. Retrieved on February 9, 2010, from http://FieldGuide.mt.gov/detail_ABPBXB9190.aspx