Following on from our recent updates to the Clements Checklist, we have now updated the IOC World List to the recently released v2.9. Of most interest to listers will be the 15 new species added:

  • Tsingy Wood Rail Canirallus beankaensis
  • Black-banded Fruit Dove Ptilinopus alligator
  • Blue-moustached Bee-eater Merops mentalis
  • Whitely's Toucanet Aulacorhynchus whitelianus
  • Bronze-winged Woodpecker Colaptes aeruginosus
  • Xingu Scale-backed Antbird Willisornis vidua
  • Northern Fiscal Lanius humeralis
  • Mexican Jay Aphelocoma wollweberi
  • Montane Tiny Greenbul Phyllastrephus albigula
  • Sakhalin Grasshopper Warbler Locustella amnicola
  • Sao Tome White-eye Zosterops feae
  • Philippine Magpie-Robin Copsychus mindanensis
  • Orange-tufted Spiderhunter Arachnothera flammifera
  • Pale Spiderhunter Arachnothera dilutior
  • Masked Cardinal Paroaria nigrogenis

As always, BUBO Listing will alert you to any updates you need to make because of this. For details about how to do these, see how taxonomic updates are handled in BUBO Listing.

World listers will be pleased to hear that we have implemented all the recent updates to the Clements Checklist. There were many taxonomic changes, including several splits (especially amongst Asian babblers for example), a few lumps and many changes to the sequence of various passerine families.

As always, BUBO Listing will highlight any updates you need to make because of this. For details about how to do these, see how taxonomic updates are handled in BUBO Listing.

We have just launched the IOC World List on BUBO Listing. This has been requested by many BUBO Listers and we feel it is likely to be adopted by most as their preferred world listing authority. We have also included species distribution details for all species to make it easier to understand the taxonomic differences between this and the Clements World List.

If you already have a world list on BUBO Listing based on Clements it is very easy to convert this into an IOC one. Just use Create New List as normal and ensure you use the "Copy from existing list" option, and specify your Clements world list. Where possible we have mapped taxa between IOC and Clements so it is likely that more than 90% of your list copy will be automatic. Where taxonomic treatment differs you will need to add the appropriate IOC taxa manually, using Batch Edit or View/Edit Species under My Lists. We have enhanced the list copying so that those species that cannot be mapped automatically are emailed to you so it is easy to add them to your new IOC world list at your leisure.

Of course if you don't already have a Clements world list then just Create New List as normal and we suggest pouring yourself a drink as you begin the task of entering all your records! Naturally it takes a while for big world lists, but it is a fun job to do, interrupted by pleasant reminiscences of past birding trips worldwide!

We have also compiled a basic summary of the taxonomic differences between the Clements and IOC world lists.

We have just updated BUBO Listing to include the Clements updates from December 2009.

White-capped Albatross (Thalassarche cauta)The number of updates was very large (one of the reasons it's taken us a while to implement them in BUBO!) Many changes referred to minor changes to English and/or scientific names. More significantly, there have been many changes to the family-level taxonomy of the passerines. Many new families have been created, and many species have been switched between families, almost all as a result of new discoveries from molecular biology. Simultaneously, the ordering of the families and species has seen major changes.

Note that this has been a complex procedure so please let us know ASAP if you see anything clearly wrong (e.g. a bulbul amongst the penguins - the taxonomic changes are often radical, but not that wacky!)

Of interest to many listers, there have also been a number of splits and lumps. Actually, the only real lumping is of Merida and Lara Tapaculos into a single species. In addition, Narosky's Seedeater is now considered only a colour morph of Marsh Seedeater, and Mascarene Shearwater is now included within the new grouping of small shearwaters known as Tropical Shearwater.

Salvin's Albatross (Thalassarche salvini)

On the other hand, splits have been announced of {number of new species in brackets}:

Speckled Teal (2), Shy Albatross (3), Tahiti Petrel (2), Little Shearwater (3), Audubon's Shearwater (2), Band-rumped Storm-petrel (3), Subantarctic Snipe (3), New Zealand Pigeon (3), Red-fronted Parakeet (2), Black-tailed Trogon (2), White-tailed Trogon (2), Violaceous Trogon (2), Scale-throated Earthcreeper (2), Red-eyed Thornbird (2), White-eyed Foliage-gleaner (2), Ruddy Foliage-gleaner (2), Greenish Warbler (2), Madagascar Brush-warbler (2), Red-flanked Bluetail (2), Littoral Rock-thrush (2), Dark-throated Thrush (2), Dusky Thrush (2), Spectacled Thrush (2), Blue-winged Leafbird (3), Golden-fronted Leafbird (2), Warbler Finch (2) and Common Redpoll (2).Greenish Warbler (Phylloscopus trochiloides)Green Warbler (Phylloscopus nitidus)

[Note that a few of these splits will not appear as available to listers as they involve extinct forms]

For further details about how to update your Clements based lists, see how taxonomic updates are handled in BUBO Listing.

One of the major advantages in using BUBO Listing over maintaining your lists yourself is that we handle the taxonomic updates from all authorities. Thus the effort in updating your own lists so that they always reflect the latest taxonomic thinking is minimal. As far as possible we apply 'splits' and 'lumps' automatically, but in some cases you will need to add the appropriate 'new' taxa yourself. For example, if a species is split and only one of the new taxa applies for the location of the list, we will update your list replacing the 'old' taxon with the new. Similarly if a species is lumped we will also update your list automatically. However if more than one taxon is valid for the location following a split, we cannot tell which one (or ones) you have seen, and you will need to update the list yourself.

When we split a species, and if we cannot update a list automatically, that species is treated as 'old' and is hidden from the list, and the list total is reduced accordingly. Thus when viewing lists on BUBO Listing these old taxa will not be included, and you can be sure that when you compare lists you are always comparing lists that follow the up to date taxonomy.

Any old taxa that has not been updated can be seen when you view your own lists using My Lists. Any list that still has old taxa on it, i.e. has pending taxonomic updates, is highlighted in yellow. When you move the mouse over it the particular list is highlighted and displays a message, as in the example below.

Taxonomic Updates

Both View/Edit List and Batch Edit then show the affected old taxa highlighted similarly. When you move the mouse over a particular old taxon a message is displayed to explain the update, i.e. details of the lump or split. The example below shows the Clements split of Greenish Warbler.

Taxonomic Updates

taxonomicupdatesTo find all the taxonomic updates pending on the list, you can "show only the pending taxonomic updates", which will filter out species not affected by any changes in taxonomy.


BUBO Listing now processes all lumps authomatically, but you may still have some 'old' lumped taxa from before we introduced this feature. To process a lump you need to add the 'new' lumped taxon and remove the old taxon from your list.

You may have seen more than one of the taxa being lumped, in which case you should add the new taxon with the date and location of the earliest sighting (if available). You might also like to add a comment (especially where lumping means you lose a species from your list!). When you remove the old taxon (by unchecking the seen box) it will be completely removed from your list since it no longer has any relevance.


To process a split that we have not been able to do automatically, you need to add whichever of the new split taxa you have seen and remove the old taxon from your list.

This can be more complicated than a lump: you may have seen several of the new taxa, or you may not know which of them you have seen. If you have seen several then just add them all and remove the old taxon when done. If you don't know, either because your original sighting(s) were not identified to subspecies or because you don't know which of the new taxa occurs in that location, then you have a few options. BUBO Listing includes distribution information for some authorities, so if you move the mouse over one of the new taxa you can see where it occurs and in most cases this will make it clear which new taxon (or taxa) you require. If this doesn't help then you may need to refer directly to the authority in question or you can post in the BUBO forums and someone can probably help you out. Alternatively you could just ignore the update, in which case the old taxon will stay visible to you as a pending update but will not be displayed publicly, or included in your total. Or just remove it - it was effectively an unidentified species and won't be included in your list total anyway.

Note that, depending on the names chosen by the authority, you may find the apparently confusing situation where a species appears to be split into itself! For example, the December 2009 Clements updates split Greenish Warbler Phylloscopus trochiloides into Green Warbler P. nitidus and Greenish Warbler P. trochiloides. Whilst initially this may sound confusing, it should be noted that it is the decision of the authority to keep the same English and scientific names for one of the new taxa that is the cause of this: the "new" Greenish Warbler P. trochiloides is not actually the same as the "old" Greenish Warbler P. trochiloides, because it no longer has a nitidus subspecies. It is important for BUBO Listing to keep a distinction so that we can tell whether all pending taxonomic updates have been processed or not, and to make it more accurate when copying lists from one authority to another (e.g. when copying your Clements world list to an IOC world list).

As with other aspects of BUBO Listing, if you have any comments or suggestions please let us know, either directly or via the forums.