Niels Krabbe

Niels Kaare Krabbe (born 1 July 1951) is an ornithologist and bird conservationist for many years based at the Vertebrate Department of the Zoological Museum, University of Copenhagen and tutored by Jon Fjeldså. His research interests include various aspects of ornithology, especially bioacoustics, conservation, and systematics and altitudinal replacements of Scytalopus tapaculos. He has worked extensively in the Andes, especially Ecuador, and wrote the passerine section of Birds of the High Andes (1990) and the accounts of most Andean species in Threatened Birds of the Americas (1992). He has helped build up a large tissue collection in the Zoological Museum and has authored or coauthored several bioacoustic publications and peer-reviewed papers in scientific journals.

Since 1998 he has worked with Fundación de Conservación Jocotoco on conservation of Ecuadorian birds, paying special attention to the pale-headed brush-finch (Atlapetes pallidiceps), for which he had searched for several years. The species was feared extinct, but he finally found a small population in 1998. Only 10–22 pairs remained, but owing to conservation efforts, it is now recuperating, with c. 100 pairs counted since 2009, when the reserve became saturated with territories.

Gallinago imperialis Pull,31Jan2003
Niels K. Krabbe with an imperial snipe chick

Bird species described by or with Niels Krabbe

Bird subspecies described by or with Niels Krabbe

Some ornithological taxonomic changes by or with Niels Krabbe

Publications authored or coauthored by Niels Krabbe


  • Fjeldså, J. & Krabbe, N. 1990. Birds of the high Andes. Copenhagen: Zoological Museum, University of Copenhagen, and Svendborg, Denmark: Apollo Books.
  • Collar, N. J., Gonzaga, L. P., Krabbe, N., Madroño Nieto, A., Naranjo, L. G., Parker III, T. A. & Wege, D. C. 1992. Threatened Birds of the Americas. Cambridge, U.K.: International Council for Bird Preservation.
  • Krabbe, N. K. & Schulenberg, T. S. 2003. Families Formicariidae (ground antbirds) and Rhinocryptidae (tapaculos). Pp. 682 – 731 and 748 – 787 in J. del Hoyo, A. Elliott and D. Christie, eds. Handbook of the Birds of the World. Vol. 8. Barcelona, Spain: Lynx Edicions.

External links

1951 in science

The year 1951 in science and technology involved some significant events, listed below.

Animal echolocation

Echolocation, also called bio sonar, is the biological sonar used by several species of animal.

Echolocating animals emit calls out to the environment

and listen to the echoes of those calls that return from various objects near them. They use these echoes to locate and identify the objects. Echolocation is used for navigation and for foraging (or hunting) in various environments.

Echolocating animals include some mammals and a few birds; most notably microchiropteran bats and odontocetes (toothed whales and dolphins), but also in simpler form in other groups such as shrews, one genus of megachiropteran bats (Rousettus) and two cave dwelling bird groups, the so-called cave swiftlets in the genus Aerodramus (formerly Collocalia) and the unrelated Oilbird Steatornis caripensis.

Caroline Fleming

Caroline Fleming (born Baroness Caroline Elizabeth Ada Iuel-Brockdorff, September 9, 1975 in Valdemar's Castle) is a Danish noble entrepreneur, model, television personality, who was the owner of Valdemar's Castle from 2003 to 2011.

Ethical dualism

Ethical dualism (from ancient Greek ἔθος (o ἦθος), ethos,"character", "custom", and Latin duo, "two") refers to the practice of imputing evil entirely and exclusively to a specific group of people, while disregarding or denying one's own capacity to commit evil.

The consequence of such stance is the creation of an "Us" versus "Them", thereby polarizing social configurations into extremes in a way that mutual understanding between the two "poles" is made very difficult or impossible, since the "Them", the "Other", is demonized, dehumanized.

In other words, ethical dualism basically pictures the existence of two mutually hostile entities, the one representing the origin of all Good and the other of all Evil.

Evolution of birds

The evolution of birds began in the Jurassic Period, with the earliest birds derived from a clade of theropoda dinosaurs named Paraves. Birds are categorized as a biological class, Aves. For more than a century, the small theropod dinosaur Archaeopteryx lithographica from the Late Jurassic period was considered to have been the earliest bird. Modern phylogenies place birds in the dinosaur clade Theropoda. According to the current consensus, Aves and a sister group, the order Crocodilia, together are the sole living members of an unranked "reptile" clade, the Archosauria. Four distinct lineages of bird survived the Cretaceous–Paleogene extinction event 66 million years ago, giving rise to ostriches and relatives (Paleognathae), ducks and relatives (Anseriformes), ground-living fowl (Galliformes), and "modern birds" (Neoaves).

Phylogenetically, Aves is usually defined as all descendants of the most recent common ancestor of a specific modern bird species (such as the house sparrow, Passer domesticus), and either Archaeopteryx, or some prehistoric species closer to Neornithes (to avoid the problems caused by the unclear relationships of Archaeopteryx to other theropods). If the latter classification is used then the larger group is termed Avialae. Currently, the relationship between dinosaurs, Archaeopteryx, and modern birds is still under debate.

Fynsk Foraar

Fynsk Foraar (Springtime on Funen), for soloists, chorus and orchestra, Opus 42, is Carl Nielsen's last major choral work. Written to accompany a prizewinning text by Aage Berntsen, it was first performed in Odense's Kvæghal (Cattle Hall) on 8 July 1922 where it was conducted by Georg Høeberg.

Gregers Krabbe

Gregers Krabbe (12 January 1594 – 20 December 1655) was a Danish-born nobleman and landowner. He was born in Jutland, a son of Niels Krabbe and Vibeke Ulfstand. He was a brother-in-law of Niels Trolle and Niels Krabbe. He served as Governor-general of Norway from 1651, and died at the Akershus Castle in Christiania in 1655.

Helsingør Custom House

Helsingør Custom House (Danish: Helsingør Toldkammer) is a former custom house situated next to Helsingør station in central Helsingør, Denmark. Completed in 1891 to a Historicist design by Johan Daniel Herholdt, it replaced Øresund Custom House, which had played a central role in Denmark's collection of Sound Dues before it was demolished in connection with an expansion of the harbour in the 1860s. The new custom house remained in use until 1976 and is today part of the Kulturværftet, a nearby cultural centre, hosting smaller concerts, exhibitions and other events.

List of bird species discovered since 1900

This article describes bird species discovered since 1900. Before the 20th century, and into its early decades, the pace of discovery (and "discovery") of new species was fast; during this period, with numerous collecting expeditions into species-rich areas not previously visited by western ornithologists, up to several hundred new species per decade were being described. Many of these were of course not new to the local people, but since then, the pace has slowed, and new species are generally only being found in remote areas, or among cryptic or secretive groups of species. Nonetheless, several tens of species were described for the first time even during the 1990s. Considerable time can pass between discovery and publication, for a number of reasons.

Individual countries particularly rich in species newly described during this period are:





PhilippinesA number of individuals have been particularly prolific in describing new species, such as:

Niels Krabbe

Paul Coopmans

Bret Whitney

List of ornithologists

This is a list of ornithologists who have articles, in alphabetical order by surname. See also Category:Ornithologists.

Niels Trolle

Niels Trolle til Trollesholm og Gavnø (20 December 1599 – 20 September 1667) was a Danish nobleman who served as vice admiral under Christian IV and later as Steward of Norway from 1656 to 1661. He played a central administrative role during the Nordic War in 1657.

Peruvian sheartail

The Peruvian sheartail (Thaumastura cora) is a species of hummingbird in the family Trochilidae.

Red-tailed comet

The red-tailed comet (Sappho sparganurus) is a medium-sized hummingbird belonging to the family Trochilidae.

Stiles's tapaculo

Stiles's tapaculo (Scytalopus stilesi) is a member of the tapaculos, a group of Neotropical birds. It was described as new to science in 2005.

It has been found at 21 sites in montane forest between 1,420 and 2,130 m altitude in the northern Cordillera Central of the Colombian Andes; although having a restricted range, within this limited area it is a common understorey bird. Initially, it seemed as if the species would classify as near threatened (Cuervo et al. 2005), but it turned out to be more plentiful and thus is classified as species of least concern in the 2007 IUCN Red List.The species was originally observed in the 1990s, but when Niels Krabbe examined recordings of their songs, his suspicions arose that they were a new species - Stiles's tapaculo's song is considerably faster and lower-pitched than that of the closely related Ecuadorian tapaculo S. robbinsi (Cuervo et al. 2005).

The species was named in honour of Frank Gary Stiles, an ornithologist who played a prominent role in research into Neotropical birds in the 1980s and 1990s.

Theodore A. Parker III

Theodore Albert "Ted" Parker III (April 1, 1953 – August 3, 1993) was an American ornithologist who specialized in the Neotropics. He "was widely considered the finest field birder / ornithologist that the world had ever seen."


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