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Friday 23 September 2016

Birds from the Azores: An updated list with some comments on species distribution

. 2015; (3): e6604.
Published online 2015 Nov 20. doi:  10.3897/BDJ.3.e6604
PMCID: PMC4678808


CE3C – Centre for Ecology, Evolution and Environmental Changes / Azorean Biodiversity Group and Universidade dos Açores, Azores, Portugal
§Universidade dos Açores, Ponta Delgada, Portugal
|na, Biarritz, France
corresponding authorCorresponding author.
Luís MD Barcelos: moc.liamg@solecrabdl
Corresponding author: Luís MD Barcelos (moc.liamg@solecrabdl).
Academic editor: Pavel Stoev

CE3C – Centre for Ecology, Evolution and Environmental Changes / Azorean Biodiversity Group and Universidade dos Açores, Azores, Portugal
§Universidade dos Açores, Ponta Delgada, Portugal
|na, Biarritz, France
corresponding authorCorresponding author.
Luís MD Barcelos: moc.liamg@solecrabdl
Corresponding author: Luís MD Barcelos (moc.liamg@solecrabdl).
Academic editor: Pavel Stoev
Received 2015 Sep 16; Accepted 2015 Nov 9.

Abstract

Background

An updated checklist of the Birds of the Azores is presented based on information compiled from and from the websites, , and , since 2010.

New information

The checklist has a total of 414 species, including 38 new species.
Almost half of the species and subspecies that occur in the Azores have a Palearctic origin, the remaining ones being essentialy Nearctic and Holarctic species. São Miguel is the island with the highest number of bird species, followed by Terceira, Corvo and Flores islands.
Keywords: Azores, birds checklist, species distribution

Introduction

Birds (Vertebrata: Aves) are some of the most iconic animals. They play important roles in the ecosystem, and since they are abundant and diverse in most urban and rural areas, humans have established a good long-lasting relationship with them (e.g., birdwatching, photography). However, amongst the ca 10.000 bird species which have been living on Earth since the appearance of modern humans, many species were regionally lost or extinct, or are endangered, especially on islands (, , , ). Updating a list of birds from remote oceanic islands represents an important step towards an improved knowledge of colonization mechanisms and migratory patterns by animals and a contribution towards the conservation and management of insular taxa and their natural habitats.
The Azores Archipelago is located in the North Atlantic Ocean, between 36°55’ and 39°43’ N, and 24°46’ and 31°16’ W, about 1500 km from mainland Europe and 1900 km from North America (Fig. (Fig.1).1). The Azores is a volcanic oceanic archipelago consisting of nine islands and several islets of recent volcanic origin (0.25 to 8.12 My old), which are spread over >600 km along a northwest-southeast transect (). The oceanic distribution of these islands and, as a consequence, their relative positions, has led to the formation of the following groups: (i), a western group, comprising the islands of Flores and Corvo; (ii), a central group, with the islands of Faial, Pico, São Jorge, Terceira and Graciosa and (iii), an eastern group, made up of the islands of São Miguel and Santa Maria.