It is interesting to note the variation in the number of extinct species.
Surely a species is extinct or not extinct. Unless, of course, there is such a
thing as Schrodinger's birds.
Carl Clifford
> On 10 May 2014, at 18:33, Phil & Sue Gregory <>
> wrote:
>
> The illustrated HBW/ BirdLife Illustrated Checklist is due out shortly as
> Dave Torr advised, with a pre-publication offer of 145 euros, but remember
> this is Vol 1 Non-Passerines only, Vol 2 Passerines is scheduled for 2016 so
> we'll have to wait till then to find out if BirdLife accepts the split of
> Striated Grassrwen into 4- presumably not if they are going only by
> morphology, but there seems to be a giant splitfest imminent with their
> system, with bits and pieces dribbling out!
> Meantime the Internet Bird Collection gives you access to an amazing range of
> videos, photos and sound cuts covering something like 90% of world species,
> and with access to all 16 volumes of HBW that are being updated (not sure if
> recently published vol 17 is there yet). Costs around 30 euros per annum with
> sometimes a 10 euro initial joining fee which they seem to waive at times.
> Highly recommended.
>
> Meanwhile Peter Kovalik on Birdforum posted this invaluable comparison of the
> major checklists:
> HBW and BirdLife International Checklist Vol 1: Non-passerines:
>
> Product details of Volume 1
> 35 orders • 111 families • 1,009 genera • 4,372 extant species • 99 extinct
> species
>
> IOC 4.2:
> 39 orders • 108 families • 976 genera • 4,228 extant species • 97 extinct
> species
>
> Clements 6.8:
> 33 orders • 107 families • 931 genera • 4102 extant species • 57 extinct
> species
>
> Howard & Moore 4:
> 35 orders • 100 families • 983 genera • 4016 extant species • 56 (49 + 7?)
> extinct species
>
> TiF 2.92:
> 44 orders • 110 families • 1007 genera • 4324 extant and extinct species
>
> BirdLife 6.1:
> - orders • 98 families • 933 genera • 4023 extant species • 88 extinct species
> Phil Gregory
>
> Website 1: Http://www.sicklebillsafaris.com
> Website 2: Http://www.cassowary-house.com.au
>
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