Bird field guide · Sandpipers and Allies

Photographing the Red Knot

How to photograph the Red Knot (Calidris canutus): the right lens for its size, shutter speeds for perched and moving animals, and when it's most often seen (May).

13–60 cm1/2500–1/4000 sNT
Red Knot (Calidris canutus)
Photo: © Paolo Zucca, some rights reserved (CC BY), uploaded by Paolo Zucca via iNaturalist
13–60 cm
Typical length (family range)
1/1000 s
Shutter: perched / still
1/2500–1/4000 s
Shutter: action / flight
f/7.1–f/8
Aperture
6,061
Research-grade sightings in N. America
ModeManual + Auto ISOLock shutter & aperture, let ISO float
Shutter (still)1/1000 s
Shutter (action)1/2500–1/4000 s
Aperturef/7.1–f/8
FocusAF-C + subject/eye detectionBright sand and surf fool meters — dial in exposure manually or with auto-ISO and compensation.
DriveHigh-speed burst
Lens300–500 mmFull-frame equivalent

Focal length needed to frame it#

For a subject about 36 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)158 mm235 mm105 mm79 mm
10 m (33 ft)315 mm470 mm210 mm158 mm
15 m (49 ft)473 mm705 mm315 mm236 mm
20 m (66 ft)630 mm940 mm420 mm315 mm
30 m (98 ft)946 mm1,410 mm630 mm473 mm
50 m (164 ft)1,576 mm2,350 mm1,051 mm788 mm

When to find it#

Jan: 6% Jan Feb: 4% Feb Mar: 3% Mar Apr: 8% Apr May: 22% May Jun: 5% Jun Jul: 3% Jul Aug: 12% Aug Sep: 16% Sep Oct: 8% Oct Nov: 6% Nov Dec: 6% Dec
Share of iNaturalist observations by month across North America. Peak months: May.

About the Red Knot#

The red knot (Calidris canutus) (just knot in English-speaking Europe) is a medium-sized shorebird which breeds in tundra and the Arctic Cordillera in the far north of Canada, Europe, and Russia. It is a large member of the Calidris sandpipers, second only to the great knot. Six subspecies are recognised.

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

Field-craft tips#

  • The tide line at a rising tide pushes shorebirds toward you.
  • Bright sand and surf fool meters — dial in exposure manually or with auto-ISO and compensation.
  • Sightings peak in 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 Sandpipers and Allies#

Spotted Sandpiper Spotted SandpiperActitis macularius WilletTringa semipalmata Least Sandpiper Least SandpiperCalidris minutilla Greater Yellowlegs Greater YellowlegsTringa melanoleuca Sanderling SanderlingCalidris alba Ruddy Turnstone Ruddy TurnstoneArenaria interpres Solitary SandpiperTringa solitaria Hudsonian WhimbrelNumenius hudsonicus

Frequently asked questions#

What lens do I need to photograph a Red Knot?

At about 36 cm long, a red knot fills a third of a full-frame image at 10 m with roughly 315 mm, or at 20 m with 630 mm.

What shutter speed should I use for a Red Knot?

1/1000 s when it's still; 1/2500–1/4000 s for action.

When is the best time to photograph a Red Knot?

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

Sources & licences#

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