How to identify the Little Heron

To correctly identify the Little Heron (Butorides striata), check each of these features. Birds can be tricky: habit, habitat, and call often confirm a sighting that a single photo cannot.

Size at a glance

Length

35-48 cm

Wingspan

52-65 cm

Weight

120-250 g

Physical features to check

1. 1

   Plumage

   Overall feather coloration and pattern.

   Adults typically have a dark, glossy greenish-black cap and crest, a dark grey-green back and wings with pale feather edgings giving a 'striated' or scaled appearance, and a grey neck and underparts. A distinctive white stripe runs from the chin down the throat, bordered by dark malar stripes. The flight feathers are dark. The overall impression is dark and cryptic, blending well with shaded vegetation.

2. 2

   Beak shape

   Shape and color of the bill: a key field mark.

   Relatively long, stout, and sharply pointed bill. The upper mandible is dark (blackish), and the lower mandible is yellowish-orange, often with a dark tip. The lores (skin between the eye and bill) are typically yellow to greenish-yellow.

3. 3

   Eye color

   Iris color and any distinctive eye markings.

   Iris is yellow.

4. 4

   Leg color

   Leg and foot color.

   Legs and feet are typically dull yellow to orange-yellow, becoming brighter orange-red during the breeding season.

5. 5

   Distinguishing features

   Standout features that separate this species.

   Compact size, dark cap, dark greenish-grey back with pale streaking, short legs, and a relatively short neck that is often retracted. The white stripe down the throat is a key feature. When disturbed, it often raises its crest.

6. 6

   Juvenile appearance

   How young birds differ from adults.

   Juveniles are heavily streaked and mottled brown on the head, neck, and underparts, with a dark brown cap. Their back and wings are dark brown with buff or rufous streaking and spotting, giving a much more mottled appearance than adults. The legs are duller yellow-green. They lack the distinct white throat stripe of adults.

7. 7

   Seasonal changes

   Plumage variation between breeding and non-breeding seasons.

   Plumage generally remains consistent year-round. However, the lores and leg coloration become brighter and more intense (yellow-orange to orange-red) during the breeding season.

8. 8

   Sexual dimorphism

   How males and females differ.

   Males and females are generally similar in plumage, though males may be slightly larger and have more intense leg coloration during breeding.

Key field marks

• Size and Shape. Look for a small, compact heron with a relatively short neck and legs, often appearing hunched or 'neckless' when perched. It's smaller than most other herons.
• Plumage (Adult). Note the dark, glossy greenish-black cap, dark greenish-grey back and wings with subtle pale streaking, and a prominent white stripe down the throat. The underparts are grey.
• Bill and Lores. Observe the stout, pointed bill with a dark upper mandible and yellowish-orange lower mandible. The yellow to greenish-yellow lores are a good field mark.
• Leg Color. Yellow to orange-yellow legs, which brighten to orange-red during the breeding season.
• Behavior. Its characteristic patient, motionless hunting style, often perched low over the water in dense vegetation, is a strong indicator. Watch for its quick strike.
• Call. Listen for its distinctive, sharp 'kyow' call, especially when flushed or in flight.
• Juvenile Plumage. If it's a juvenile, look for heavy brown streaking and mottling on the head, neck, and underparts, and streaked dark brown wings, lacking the adult's clean grey and green tones.

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