HBW Alive Newsletter
Nº41, November 2017

Extinct Birds

Paraphrasing Errol Fuller’s Foreword on Extinct Birds in HBW Volume 7, “The subject of recent extinctions is one that seems, increasingly, to be a part of popular culture.” Knowing that ornithologists and bird enthusiasts have a great interest in extinct birds, we have included 157 species accounts of extinct bird species in HBW Alive!
Each species account includes Taxonomy, Subspecies and Distribution sections and a map of its former distribution. There is also an illustration for all of the species for which there exists a complete specimen or sufficient other information to be illustrated with a good degree of accuracy. Additional notes are included about the circumstances and timing of the extinction of each species.
Here you can find out more about the extinct species in HBW Alive.
Ferran Gil
Webmaster, HBW Alive
News on HBW Alive
New Species from the Checklist Updated

New Split Species from the Illustrated Checklist Updated

We continue work on updating the passerine splits derived from Volume 2 of the Illustrated Checklist, both the original “mother” species and the resulting “daughter” species.

As always, we add multimedia links to the completed “new species”, with Campephagidae (Cuckooshrikes), Vangidae (Vangas and allies), Platysteiridae (Batises and wattle-eyes) and Acrocephalidae (Reed-warblers) finished and Pycnonotidae (Bulbuls) under way.

Here are four examples to browse:
Biak Triller
Biak Triller
(Lalage leucoptera)
Sri Lanka Woodshrike
Sri Lanka Woodshrike
(Tephrodornis affinis)
West African Wattle-eye
West African Wattle-eye
(Dyaphorophyia hormophora)
Northern Marquesan Reed-warbler
Northern Marquesan Reed-warbler
(Acrocephalus percernis)
Recently Updated Species
 Highlighted Owl species with full texts updated:
Tawny-browed Owl
Tawny-browed Owl
(Pulsatrix koeniswaldiana)
Brown Wood-owl
Brown Wood-owl
(Strix leptogrammica)
Spotted Owl
Spotted Owl
(Strix occidentalis)
Tawny Owl
Tawny Owl
(Strix aluco)
Species with Multimedia Links
Our team hand picks and adds multimedia links (videos, photographs and sound recordings) to the accounts to enhance the comprehension of the already detailed texts. Some of our recent favourites include links to all species of genera Coturnix, Anthracoceros, Andigena, Amytornis and Criniger.

Take a look!
Amytornis
Purple-throated Carib
Here are our “Top 5” picks for species with recently incorporated multimedia links: Purple-throated Carib (Eulampis jugularis), Prong-billed Barbet (Semnornis frantzii), Saipan Reed-warbler (Acrocephalus hiwae), Cream-throated White-eye (Zosterops atriceps) and Giant Weaver (Ploceus grandis).
HBW Alive Features

Species Conservation Status


We have developed a new filtering tool that allows you to choose one or more Conservation statuses and shows you the resulting species displayed in a grid, grouped by families. You can further filter the results by a particular family.

To get to this new tool, just select the “Species” tab and then “Extinct” from the main menu. As you can see, the “Conservation status” box has “Extinct” pre-selected. You can change or add to this selection and then click the “Apply” button.
Species Conservation Status


HTTPS: Secure navigating on HBW Alive and IBC


We’re happy to announce that we’ve implemented HTTPS to encrypt all HBW Alive and IBC traffic. Since 1 November 2017, all of our HTTP pages are being redirected to the equivalent HTTPS pages. Visitors will now have their browsing traffic encrypted, greatly reducing the probability of interception and monitoring by third parties or mass censorship by internet service providers or governments.
 
Get the Most Out of My Birding

Sighted species by group

As explained in our August Newsletter, with the feature “Sighted species by group” you can discover how many and which species you have seen of each genus, family and order with just a few clicks.

Also, in the Family accounts on HBW Alive, we’ve added a section in the side-bar called MY BIRDING, which shows the number of species you have seen of that family, the specific data for the family’s first five genera and direct access to the Sighted species by group page.
 
News on Birds
New taxa

Painted Manakin Machaeropterus eckelberryi


The authors describe a new species that appears to be almost identical morphologically to the Tepui form of Eastern Striped Manakin (Machaeropterus regulus aureopectus), but differs strongly from that and all other members of the M. regulus complex in voice. They conclude that this population represents a new biological species that they name Painted Manakin Machaeropterus eckelberryi.

Read more about this new species here!
 
Ornithological News

What threatens the important Eurasian Curlew population of the United Kingdom?


Although a recent addition to the UK red list, the Eurasian Curlew (Numenius arquata) has been proposed as the country’s highest bird conservation priority. It is a Near Threatened species of which the UK holds about 28% of the European, and 19–27% of the global, population, but almost half the UK breeding population was lost between 1995 and 2014. Low reproductive success appears to be the demographic driver of the population declines throughout Europe, since annual survival rates are high. But what factors are negatively affecting reproductive success? Comparative analyses of breeding abundance and population change in Britain during 1995–99 and 2007–11 support some earlier hypotheses regarding the negative effects of intensive agriculture, forestry and the population increases of some generalist predators, such as crows and foxes. Current climatic warming may also be having a negative impact, since curlew numbers have been found to be positively associated with cooler temperatures and higher summer rainfall.
 

Impact of cat predation on Australian birds


The control of feral cats is a priority for conservation policy in Australia. Since their first introduction in 1788, cats have spread to now occupy the entire continent and most of the larger islands and have been implicated in the decline and extinction of many native mammal species. Over two million feral cats are estimated to live there in largely natural landscapes, numbers varying from 1.4 million in drought and average years to 5.6 million after prolonged wet periods. An analysis of results from 93 studies on the occurrence of birds in cat stomachs and scats has now enabled a first assessment of the extent of bird losses due to cat predation, on a continental scale. Feral cats are estimated to consume around 272 million birds in an average year, while pet cats in highly modified landscapes kill an additional 61 million birds. These figures are broadly comparable to recent assessments for Canada, but lower than reported for the United States, where the cat population is much larger. A worrying finding of the Australian study is that the overall take of birds by cats is about ten times greater on islands than in comparable mainland areas, predation rates being especially high on smaller islands. Predation on birds also appears to be relatively high in hot, arid regions.
Read more   News on Birds   |   First Country Reports
Internet Bird Collection
IBC's Video of the Month
Violaceous Coucal
Three Violaceous Coucal Centropus violaceus displaying.
Recorded in Garu Wildlife Management Area, New Britain, Bismarck Archipelago,
on 21 July 2017.
IBC's Photo of the Month
Tropeiro Seedeater
Male Tropeiro Seedeater Sporophila beltoni perched.
Taken in Capão Alto, Santa Catarina State, Brazil,
on 8 January 2012.
IBC's Sound Recording of the Month
African Pitta
An African Pitta Pitta angolensis calling.

Recorded in South Luangwa National Park, Zambia, on 25 November 2004.
New Publications
Winter Birds

Winter Birds

By Lars Jonsson

In this stunning book, Lars Jonsson celebrates and explores the beauty of the birds that surround him during the Swedish winter months. Inspired by the desolate, wintry landscapes, the dazzling light and the stark contract of colours he observes against the snow, Jonsson has created an unparalleled collection of art.
 
33.50€     BUY NOW 

The Birders’ Choice Awards 2017 are now open for voting
until 30 November.

Birders’ Choice Awards

It is great to see that 3 of the 5 titles nominated for “Book of the Year” are published by Lynx Edicions!

Participate and enter the prize draw to win a Celestron C5 scope!

Nominated LYNX titles:

Checklist

HBW & BirdLife International Illustrated Checklist of the Birds of the World volume 2: Passerines
by Josep del Hoyo and Nigel J Collar

Part two of Lynx Edicions’ complete checklist to all the birds of the world covers passerines.

Birds of Europe, North Africa and the Middle East
Birds of Europe, North Africa and the Middle East
An Annotated Checklist

by Dominic Mitchell

Written by Birdwatch’s Managing Editor, this long-awaited regional update lists all 1,148 species recorded in Europe, North Africa and the Middle East (including Iran and the Arabian Peninsula).
Birds of the Indonesian Archipelago
Birds of the Indonesian Archipelago
Greater Sundas and Wallacea

by James A Eaton, Bas van Balen, Nick W Brickle and Frank E Rheindt

This first field guide to a country spanning two biogeographic zones covers all 1,417 species known to have been seen in the region.

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