Bird field guide · Mockingbirds and Thrashers

Photographing the Brown Thrasher

How to photograph the Brown Thrasher (Toxostoma rufum): the right lens for its size, shutter speeds for perched and moving animals, and when it's most often seen (April and May).

20–30 cm1/2500–1/3200 s
Brown Thrasher (Toxostoma rufum)
Photo: no rights reserved, uploaded by Chrissy McClarren and Andy Reago via iNaturalist
20–30 cm
Typical length (family range)
1/800 s
Shutter: perched / still
1/2500–1/3200 s
Shutter: action / flight
f/5.6–f/7.1
Aperture
47,809
Research-grade sightings in N. America
ModeManual + Auto ISOLock shutter & aperture, let ISO float
Shutter (still)1/800 s
Shutter (action)1/2500–1/3200 s
Aperturef/5.6–f/7.1
FocusAF-C + subject/eye detectionBird-eye AF with continuous focus (AF-C/AI Servo); fill at least a third of the frame.
DriveHigh-speed burst
Lens400–600 mmFull-frame equivalent

Focal length needed to frame it#

For a subject about 25 cm long filling a third or half of the frame width horizontally.

Distance⅓ of frame (FF)½ of frame (FF)⅓ of frame (APS-C)⅓ of frame (MFT)
5 m (16 ft)227 mm336 mm151 mm113 mm
10 m (33 ft)454 mm672 mm302 mm227 mm
15 m (49 ft)680 mm1,007 mm454 mm340 mm
20 m (66 ft)907 mm1,343 mm605 mm454 mm
30 m (98 ft)1,361 mm2,015 mm907 mm680 mm
50 m (164 ft)2,268 mm3,358 mm1,512 mm1,134 mm

When to find it#

Jan: 4% Jan Feb: 3% Feb Mar: 7% Mar Apr: 23% Apr May: 24% May Jun: 14% Jun Jul: 8% Jul Aug: 3% Aug Sep: 6% Sep Oct: 5% Oct Nov: 2% Nov Dec: 2% Dec
Share of iNaturalist observations by month across North America. Peak months: April and May.

About the Brown Thrasher#

The brown thrasher (Toxostoma rufum), sometimes erroneously called the brown thrush or fox-coloured thrush, is a bird in the family Mimidae, which also includes the New World catbirds and mockingbirds. The brown thrasher is abundant throughout the eastern and central United States and southern and central Canada, and it is the only thrasher to live primarily east of the Rockies and central Texas. It is the state bird of Georgia.

Summary adapted from Wikipedia via iNaturalist (CC BY-SA 4.0).

Field-craft tips#

  • Singing males claim conspicuous perches.
  • Bird-eye AF with continuous focus (AF-C/AI Servo); fill at least a third of the frame.
  • Sightings peak in April and May, which is when you'll have the most chances.

Ethics#

  • The welfare of the animal comes first: if it changes its behaviour because of you, you are too close.
  • Stay on trails, respect closures around nests, leks, dens and haul-outs.
  • Avoid playback and baiting in sensitive seasons; never bait predators.
  • Don't share precise locations of rare, nesting or roosting animals publicly.

More Mockingbirds and Thrashers#

Northern Mockingbird Northern MockingbirdMimus polyglottos Gray Catbird Gray CatbirdDumetella carolinensis Curve-billed Thrasher Curve-billed ThrasherToxostoma curvirostre California Thrasher California ThrasherToxostoma redivivum Tropical Mockingbird Tropical MockingbirdMimus gilvus

Frequently asked questions#

What lens do I need to photograph a Brown Thrasher?

At about 25 cm long, a brown thrasher fills a third of a full-frame image at 10 m with roughly 454 mm, or at 20 m with 907 mm.

What shutter speed should I use for a Brown Thrasher?

1/800 s when it's still; 1/2500–1/3200 s for action.

When is the best time to photograph a Brown Thrasher?

Observations in North America peak in April and May. Early morning and late afternoon give the best light and activity.

Sources & licences#

Last updated October 03, 2026 · How we calculate · Sources