20240412 brown headed cowbird south meadows PD208070🐦

Photo: Paul Danese · CC BY-SA 4.0

SpeciesPasseriformesIcteridae
Birds

🐦Brown-headed Cowbird

Molothrus ater (Boddaert, 1783)

The brown-headed cowbird is a small, obligate brood parasitic icterid native to temperate and subtropical North America. It is a permanent resident in the southern parts of its range; northern birds migrate to the southern United States and Mexico in winter, returning to their summer habitat around March or April.

Text: Wikipedia, CC BY-SA 4.0.

Videos
12
Photos
2
Measurements
11
vs you
≈ 1/1,540th of your weight
Conservation status
LCLeast concern

IUCN Red List assessment, 2018.

Population trendDecreasing
Key measurements
Body mass
0.04 kg
Body length
not recorded
Shoulder height
not recorded
Top speed
not recorded
Bite force
not recorded
Maximum lifespan
17 years
All measurements ↓
Facts and figures

Everything we know about the Brown-headed Cowbird

Typical adult figures. Where a value is an estimate rather than a measurement, it says so.

Body mass
0.04 kg
AVONET
Other figures ↓

Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0

Figures vary

  • 0.04 kgAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Tail length
0.07 m
AVONET
Details ↓

Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0

Wing length
0.1 m
AVONET
Details ↓

Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0

Beak length
0.02 m
AVONET
Details ↓

Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0

Tarsus length
0.02 m
AVONET
Details ↓

Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0

Maximum lifespan
17 years
AnAge
Details ↓

data quality: acceptable

Source: AnAge · AnAge build 15, 2023-07-03 (HAGR) · CC BY 3.0

Gestation
11 days
AnAge
Details ↓

data quality: acceptable

Source: AnAge · AnAge build 15, 2023-07-03 (HAGR) · CC BY 3.0

Trophic level
Carnivore
AVONET
Details ↓

Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0

Habitat
Forest
AVONET
Details ↓

Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0

Lifestyle
Terrestrial
AVONET
Details ↓

Source: AVONET · v1.1 (Tobias et al. 2022) · CC BY 4.0

Volume l
0 Laverage
Details ↓

Body mass at ~1.0 kg/L, the density of vertebrate tissue.

average = a mean across sexes or species in a group.

Not recorded for Brown-headed Cowbird yet: body length, shoulder height, top speed, bite force.

Where it sits

Family tree

  1. kingdomAnimalia
  2. ›phylumChordata
  3. ›classAves
  4. ›orderPasseriformes
  5. ›familyIcteridae
  6. ›genusMolothrus
  7. ›speciesMolothrus ater
Full lineage
  1. superclassTetrapoda
  2. orderSauria
  3. classBirds · Aves
  4. orderPerching birds · Passeriformes
All 10 branches ↓
  1. kingdomMetazoa
  2. phylumChordata
  3. subphylumCraniata
  4. subphylumVertebrata
  5. superclassGnathostomata
  6. superclassSarcopterygii
  7. superclassTetrapoda
  8. orderSauria
  9. classBirds · Aves
  10. orderPerching birds · Passeriformes
More

More about the Brown-headed Cowbird

In other languages
merla de cap bru (ca), vlhovec hnědohlavý (cs), Brunhovedet Kostær (da), Braunkopf-Kuhstärling (de), Molothrus ater (es), lehmäturpiaali (fi) … and 21 more languages

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