Common Hawk-Cuckoo (Hierococcyx varius)
Illustration redrawn by AI from a real photograph

Common Hawk-Cuckoo

Hierococcyx varius (Vahl, 1797)

≈32 cmLength103 gWeight

It has a gray back and yellow eye-ring, and alternates wingbeats with gliding in flight.

Busiest months: February–May · Most records: India, Nepal, Bangladesh

Least Concern

How to identify

Field marks

  1. Eye-ring yellow
  2. Upperparts gray
  3. Underparts whitish, with brown barring
  4. Tail with broad barring

Male, female and young

Sexes similar in plumage, but the male is often larger; immatures have streaks on the breast and large brown V-shaped markings on the belly.

Voice

In summer the male repeatedly gives three loud notes, the second longer and higher; the calls gradually build in intensity, then stop abruptly.

Where and when it's recorded

Common Hawk-Cuckoo has been recorded at 314 of the 8,171 birding hotspots we track, in 7 countries and regions.

Records by month Northern Hemisphere

Where it's recorded most

  1. Kanha NP – Mukki ZoneIndia4,559 records
  2. Kanha Tiger Reserve – Mukki GateIndia1,649 records
  3. Salim Ali Centre for Ornithology and Natural HistoryIndia1,237 records
More places
  1. Kanha NP – Kanha ZoneIndia1,174 records
  2. Sultanpur National ParkIndia1,050 records
  3. Valley SchoolIndia1,035 records
  4. Kerala Agricultural UniversityIndia998 records
  5. Bharatpur – Keoladeo Ghana NPIndia916 records
  6. Thrissur Government Medical CollegeIndia905 records
  7. IIT MadrasIndia896 records

Countries and regions with the most records

IndiaNepalBangladeshSri LankaPakistanBhutanMyanmar (Burma)

eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.

About

The common hawk-cuckoo (Hierococcyx varius), popularly known as the brainfever bird, is a medium-sized cuckoo resident in the Indian subcontinent. It bears a close resemblance to the shikra, even in its style of flying and landing on a perch. The resemblance to hawks gives this group the generic name of hawk-cuckoo; like many other cuckoos, these are brood parasites, laying their eggs in the nests of babblers.

Excerpt from Wikipedia, CC BY-SA 4.0 · authors · Read more on Wikipedia

Questions

How big is the Common Hawk-Cuckoo?

The Common Hawk-Cuckoo is about ≈32 cm long and weighs around 103 g.

Where does the Common Hawk-Cuckoo live?

Its breeding range: Oriental: India to Myanmar. It is most often recorded in India, Nepal and Bangladesh.

When is the best time to see the Common Hawk-Cuckoo?

At the hotspots we track, it is recorded most in February, March, April and May (Northern Hemisphere).

Is the Common Hawk-Cuckoo endangered?

The IUCN Red List classifies the Common Hawk-Cuckoo as Least Concern.

What does the Common Hawk-Cuckoo eat?

Main food: Insects & other invertebrates.

What family is the Common Hawk-Cuckoo in?

It belongs to the family Cuckoos (Cuculidae), order Cuculiformes.

At a glance

Length
≈32 cm
Weight
103 g
Habitat
Woodland
Diet
Insects & other invertebrates
Lifestyle
Perches in trees
Migration
Resident (barely migrates)
Conservation
Least Concern
More measurements
Wing
191 mm
Tail
161 mm
Bill
26 mm
Tarsus
24 mm

Averages from the AVONET dataset; length from field guides where available.

Range

Oriental: India to Myanmar

Breeding range, IOC World Bird List 15.2

Classification

Family
Cuckoos Cuculidae
Genus
Hierococcyx

Other birds in the genus Hierococcyx

Common Hawk-Cuckoo

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Free to use with credit: “Illustration: Bird Album (birdalbum.com)”. Drawn by AI from a reference photo by dr ashok. ↗

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