Madeiran Storm Petrel

By 03/12/2020Birds

 

The Madeiran Storm Petrel is also mainly known as Band-rumped Storm Petrel. This bird is named « band-rumped » for the white band across the top of its broad and squared-tipped tail. Like a lot of Storm Petrels species, Madeiran Storm Petrels breed away from continental area on remote offshore islands or off shore archipelagos (e.g., Azores). They are very similar to Monteiro’s Storm Petrel.

CHARACTERISTICS

  • Latin name: Oceanodroma castro
  • Order: Procellariiformes
  • Family: Hydrobatidae
  • Length: 19-21 cm
  • Weight: 42-44 gr
  • Wingspan: 44-46 cm
  • IUCN Status: Least concern

 

Source: Map Lynx Edicions/BirdLife International

DESCRIPTION

Important: Birds species have different identifying features depending on sex, age and season.

Eye color: Black
Beak: Thin black beak
Leg color: Black, dark brown
Feather colors: Black, brown, white

 

Source: Photo courtesy of Luke Seitz

LIFE HISTORY

DIET

Madeiran Storm Petrels found foraging areas or feeding strategies at internal wave crest, where preys are caught at or just below surface. They feed on the wing usually dipping or surface seizing small food items and are rarely seen pattering. They mainly feed on fish and squids.

 

REPRODUCTION

Madeira Storm Petrels occurs in the Azores from late July to late March. In the Azores, breeding areas are very limited, including Graciosa, Santa Maria and now, it already recently been registered breeding individuals on the islet of Vila Franca in Sao Miguel. The reproduction occurs between December and May. The incubation of a single egg (white) lasts at around 39-50 days. The juveniles will reach the fledgling stage, first flight, at around 60-70 days.

VOCAL BEHAVIOR

The vocal behavior of Madeiran Storm Petrel is very little known. The chicks deliver a high but mellow tueep-tueep-tueep. This species call in air, ground or/and in burrows.

 

 

illustration by Juan M. Varela.

Marylou

About Marylou

Marylou is a Marine Biologist and Master in Oceanography. She is one of our Marine Wildlife Guide and is responsible for Science Education at TERRA AZUL. Originally from France, she studied in Canada and Belgium and loves being out to sea to share her knowledge with you.

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