Monteiro's storm petrel is a seabird species from the storm petrel family, Hydrobatidae. The cryptic species was once considered to be conspecific with the band-rumped storm petrel. The species is endemic to the Azores.
Region
North Atlantic (Azores archipelago)
Typical Environment
Outside the breeding season it forages over pelagic waters surrounding the Azores, typically far from land. Breeding occurs on small rocky islets where it nests in crevices and burrows among lava blocks and cliffs. At sea it frequents productive frontal zones and upwellings, picking prey from the surface. The species is highly localized on land but ranges widely over adjacent oceanic waters.
Altitude Range
Sea level to 200 m
Climate Zone
Subtropical
Ease of Keeping
Beginner friendly: 1/5
A cryptic seabird once lumped with the band-rumped storm petrel, Monteiro's storm petrel was recognized as distinct based on breeding season and subtle morphological and genetic differences. It is a summer-breeding, nocturnal colony nester that uses rock crevices and burrows on tiny islets. Major threats include invasive mammals, light pollution, and disturbance at its very limited breeding sites. Conservation actions on Azorean islets have improved breeding success in recent years.
Temperament
pelagic and wary near colonies
Flight Pattern
short rapid wingbeats with brief glides close to the wave tops; pattering on the surface when feeding
Social Behavior
Breeds colonially in burrows and rock crevices, visiting colonies strictly at night to avoid predators. Typically monogamous with strong site fidelity, laying a single egg per season. Adults alternate incubation and chick-rearing duties and are silent at sea but vocal within the colony.
Migratory Pattern
Resident
Song Description
At colonies it gives low, churring purrs and squeaky chatters, often delivered from within burrows. Calls are soft and carry poorly over wind and surf, aiding in predator avoidance.
