Birds of South Asia: The Ripley Guide by Pamela C. Rasmussen and John C. Anderton is a two-volume ornithological handbook, covering the birds of South Asia, published in 2005 (second edition in 2012) by the Smithsonian Institution and Lynx Edicions. The geographical scope of the book covers India, Bangladesh, Pakistan, Sri Lanka, Nepal, Bhutan, Maldives, the Chagos Archipelago and Afghanistan (the latter country had been excluded from previous works covering this region). In total, 1508 species are covered (this figure includes 85 hypothetical and 67 'possible' species, which are given only shorter accounts). Two notable aspects of Birds of South Asia are its distribution evidence-base — the book's authors based their distributional information almost completely on museum specimens — and its taxonomic approach, involving a large number of species-level splits.
Volume 1 is a field guide. A nine-page introduction is followed by 180 colour plates, each with an accompanying text page giving brief identification notes, and, for most species, range maps. In addition to the 69 plates by Anderton, eleven other artists contributed, including Ian Lewington and Bill Zetterström. Volume 2: Attributes and Status contains more detailed supporting texts for every species. Twelve other authors are listed as having contributed to this volume, including Per Alström, Nigel Collar and Craig Robson. This volume opens with an appreciation, written by Bruce Beehler, of S. Dillon Ripley, who initiated the work which led to the book, and after whom it is named. This is followed by a 24-page introduction. The bulk of the book, from pages 41 to 601, consists of individual species accounts; each of these includes sections on identification, occurrence, habits and voice (this latter section accompanied by sonograms for many species). There are ten appendices, including a hypothetical list, a list of rejected species, a summary of taxonomic changes, a glossary, a gazetteer, and a list of institutions holding major collections of South Asian bird specimens.
In preparing the book, the authors undertook a major revision of the taxonomic status of bird forms found in the region; many allopatric forms previously regarded as conspecific are treated by Rasmussen and Anderton as full species. Many of these had previously been proposed elsewhere, but the book introduced a number of innovations of its own.[1] The majority of these changes, and the overwhelming majority of the novel ones, are among the passerines. The following is a list of the groups of taxa which are considered conspecific in the sixth edition of the Clements Checklist (Clements 2007),[2][3] but split into two or more species in Rasmussen and Anderton's work (volume 2 page references in brackets).
(pp. 211–2) Emerald dove (Chalcophaps indica) is split into two species: emerald dove (Chalcophaps indica sensu stricto) and an Australasian species C. longirostris
(p. 433) Long-billed wren-babbler (Rimator malacoptilus) is regarded as a monotypic species, separate from the two southeast Asian taxa R. albostriatus and R. pasquieri
^Collar & Pilgrim (2008) includes an analysis of Rasmussen & Anderton's proposed changes, indicating which had previously been proposed by other authors, and which are novel.
^At the time of Birds of South Asia's publication, Clements was the most widely used world bird checklist; the sixth edition was published shortly after Birds of South Asia, and hence is used here as the best work to view the effect of Rasmussen & Anderton's proposals; when compared with earlier regional lists, such as the Oriental Bird Club checklist (Inskipp et. al. 1996), the effects are greater still.
^Sympatric occurrence of the two putative species in the breeding season without interbreeding was first documented by Carey & Melville 1996.
^Rasmussen and Anderton made a firm decision to split Himalayan buzzard; they describe Japanese buzzard as "probably specifically distinct".
^A treatment previously proposed by Fleming et. al. 1984
^Rasmussen & Anderton treat three South Asian taxa (affinis, pompadora & chloropterus) as monotypic species, separate from the remainder of the "pompadour green pigeon" complex (the name phayrei having priority for this group); this treatment is in line with Hussain (1958). They also state that two extralimital taxa (axillaris & aromaticus) are probably also better treated as separate species.
^König et. al. (1999) had earlier proposed this split.
^A treatment previously proposed in Wijesinghe (1994)
^A treatment previously proposed in Wells et. al. (2003)
^An arrangement previously proposed by Kryukov (1995). Rasmussen & Anderton use the names isabelline and rufous shrikes for Daurian and Turkestan shrikes, respectively.
^Rasmussen and Anderton made firm decisions to split Tibetan blackbird, and the simillimus group of southern races as Indian blackbird; in the case of mandarinus, they stated that this taxon probably deserved species status. In addition, they suggested that within the simillimus group, the Sri Lankan race kinnisii is also probably better treated as a separate species. The simillimus group had previously been treated as a full species in Henry (1971). However this treatment had not gained widespread acceptance: both The Birds of the Western Palearctic (Cramp 1988) and the Oriental Bird Club checklist (Inskipp et. al. 1996) had retained these forms within common blackbird. Clement & Hathway (2000) had suggested that mandarinus and maximus probably deserved to be treated together as a separate species; again the OBC checklist had treated these as conspecific with common blackbird.
Fishpool, L. D. C. and J. A. Tobias (2005) Family Pycnonotidae (bulbuls) pages 124–250 in J. del Hoyo, A. Elliott, A. and D. A. Christie Handbook of the Birds of the World, Volume 10: Cuckoo-shrikes to ThrushesISBN84-87334-72-5
Fleming, Robert L., Sr., Robert L. Fleming Jr. and Lain Singh Bangdel (1984) Birds of Nepal, with reference to Kashmir and Sikkim (3rd edition) ISBN81-87138-12-2
Henry, G. M. (1971) A guide to the birds of Ceylon
Hussain, K. Z. (1958) Subdivisions and zoogeography of the genus Treron (green fruit-pigeons) Ibis 101:249-250
Ivanov, A.I. (1941) Oenanthe chrysopygia de Fil. I O. xanthoprymna Hempr. & Ehrenb. Izvestiya Akademii Nauk SSSR 3: 381–384.
McAllan, I. A. W. and M. D. Bruce (1988) The birds of New South Wales, a working listISBN0-9587516-0-9
(in Russian) Panov, E.N. (1999) Kamenki Palearktiki. Ekologiya, povedenie, evolyutsiya (The Wheatears of the Palearctic. Ecology, Behaviour, Evolution).
Wells, D. R., E. C. Dickinson and R. W. R. J. Dekker (2003) A preliminary review of the Chloropseidae and Irenidae Zoologische Verhandelingen 344: 25-32
Wijesinghe, D. P. (1994) Checklist of the Birds of Sri Lanka. Ceylon Bird Club, Colombo.