Bird Guide

Cloud-forest Pygmy Owl vs Colima Pygmy Owl

Cloud-forest Pygmy Owl (Glaucidium nubicola)

Cloud-forest Pygmy Owl

Glaucidium nubicola

Medium78 gForest

The cloud-forest pygmy owl is a small owl, 14.5 –16 cm (5.7–6.3 in) in length with a 92.8–96.3 cm (3.7–3.8 in) wingspan. Weight can range from 75.6 to 79.3 g (2.7 to 2.8 oz). The male and female have similar markings and plumage, but as in many birds of prey this pygmy owl may display sexual dimorphism in size, with the female being more than 3% larger and more than 3% heavier than the male. The standard linear measurements are: the tail measures 46.8 mm (1.8 in) and the bill (from cere to tip) measures 11.3 mm (0.4 in). Voice: The song of the cloud-forest pygmy owl is composed of simple notes best expressed as hollow whistles or toots, like almost all New World Glaucidium species. It is a long series of short whistles, delivered in pairs and occasionally in trios. This song pattern is shared with the northern pygmy owl (Glaucidium gnoma) and the Costa Rican pygmy owl (G.

ID text from Wikipedia, CC BY-SA 4.0

Photo: My-Lan Le · CC BY 4.0
Colima Pygmy Owl (Glaucidium palmarum)

Colima Pygmy Owl

Glaucidium palmarum

Small46 gForest

The Colima pygmy owl is 13 to 15 cm (5.1 to 5.9 in) long. Male specimens weigh 43 to 48 g (1.5 to 1.7 oz) and females are noted as heavier without quantification. The head and back are brown, the wings mostly grayish brown, and the tail a deeper grayish brown. The head has small dull white spots. White spots show along the closed wing and the tail has oval white spots forming bands across it. The face has dull white "eyebrows" and the nape has a pair of dark "eye spots". The underparts are buffy white with wide cinnamon stripes. Voice: The Colima pygmy owl's song is a "hollow hooting ... with variable, often increasing, number of notes... up to 24 notes (or more?) in series."

ID text from Wikipedia, CC BY-SA 4.0

Sonogram of the Colima Pygmy Owl
Recorded by Diego_Barrales · Call · Xochimancas, Tlaltizapán, Morelos, Mexico · CC BY 4.0
Photo: Ron Knight from Seaford, East Sussex, United Kingdom · CC BY 2.0

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Photos and recordings are credited to their authors under the licence shown. Full profiles: Cloud-forest Pygmy Owl and Colima Pygmy Owl.