Chiguanco Thrush vs Karoo Thrush

Chiguanco Thrush

Turdus chiguanco

Medium93 gShrubland

The Chiguanco thrush is 25 to 30 cm (9.8 to 12 in) long and weighs 75 to 120 g (2.6 to 4.2 oz). Adults of both sexes of the nominate subspecies T. c. chiguanco have a plain olive gray-brown head and upperparts, wings, and tail. Their underparts are slightly paler. They have a red to chestnut iris, a yellow bill, and yellow legs and feet. Juveniles are dull grayish olive with browner wings and tail than adults. They have pale spots on the wing coverts, pale buff streaks on the back, and buff to brown spots and streaks on the underparts. Subspecies T. c. Voice: The Chiguanco thrush's song in Ecuador is described as "a rather simple melodic phrase repeated over and over, usually terminating in a jumble or twitter"; it is sung mostly at dawn and dusk. In Peru it is similarly described as "a rich and pleasant caroling series of 'typical thrush' song phrases with a somewhat echoing quality". The song of subspecies T. c.

ID text from Wikipedia, CC BY-SA 4.0

Recorded by Niels Krabbe · Song · Loja: Río León at Cuenca-Loja road, Ecuador · CC BY-SA 4.0

Photo: (c) Esteban Poveda, some rights reserved (CC BY), uploaded by Esteban Poveda · cc-by

Karoo Thrush

Turdus smithi

Medium78 gForest

This medium-sized bird has a length of about 24 cm. It has a wing length between 117 and 131 mm, a culmen length between 20 and 24 mm and a tarsus length between 30.0 and 34.5 mm. It can reach a mass of at least 86 g. It differs from the olive thrush by its longer, entirely yellow bill, its longer wings, and its greyer flanks.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Derek Keats from Johannesburg, South Africa · CC BY 2.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Chiguanco Thrush and Karoo Thrush.