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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Recent content by Ian Lewis

  1. Ian Lewis

    Trochilidae

    Fortunately I've seen Giant Hummingbird near Valparaiso, Chile and in Ecuador so I should have seen both but what do I do with the high altitude ones I've seen in Peru, Bolivia, Northern Argentina and northern Chile? Leave as Patagona sp I suppose
  2. Ian Lewis

    The mitonuclear compatibility species concept

    I'm probably being a bit thick here (or to put it another way molecular biology has advanced considerably since I studied it in the early 70s) but if mitochondria are only inherited through the maternal line, then how can mitochondrial genes be anything other than maternal genes and so why would...
  3. Ian Lewis

    How many species of owl have you seen

    Cyprus Scops wasn't a species when we went in 1995 but fortunately I made the effort to see the scops anyway
  4. Ian Lewis

    Name a Bird You've Seen 2

    Another Sao Tome endemic that Markus and I saw two years ago # 9693 Dwarf Ibis photo by Dani Lopez Velasco
  5. Ian Lewis

    Name a Bird You've Seen 2

    Not Gracefull Prinia because that's already been taken but a recent split from it: Delicate Prinia
  6. Ian Lewis

    How many species of owl have you seen

    You've beaten me again Jonathon, I thought my 178 plus 9 heard onlys was pretty good until read your post :)
  7. Ian Lewis

    Name a Bird You've Seen 2

    # 9143 New Caledonian Storm Petrel, I laughed a lot once I'd got it on my life list
  8. Ian Lewis

    Latest IOC Diary Updates

    But as we know David Donkser reads this thread, isn't feedback from those with specialised knowledge useful to the IOC's decision making process?
  9. Ian Lewis

    How do you keep your lifelist, and what is included?

    I used to keep mine on paper sheets but as the list grew keeping track of splits and lumps became difficult and untidy. I bought my 1st laptop in 1995 and immediately purchased the Wildlife Recorder program, it took two years of work lunch breaks to enter all the sightings (there are over...
  10. Ian Lewis

    Green Woodpecker

    The British Ornithologist's Union use the IOC List as the basis for the British List, so if you have recorded birds in the UK you've recorded them under BOU taxonomy. It would sense in my opinion to continue to use the IOC taxonomy when abroad.
  11. Ian Lewis

    Clements 2023 Checklist Update

    thank you
  12. Ian Lewis

    Clements 2023 Checklist Update

    On the subject of egret splits would anyone like to comment on whether three 'Intermediate Egrets' seen in Oman in October would most likely be the African 'Yellow-billed' or the Asian 'Medium Egret'. I presume that an 'Intermediate Egret' seen on Christmas Island in September could safely be...
  13. Ian Lewis

    Latest IOC Diary Updates

    Many thanks for this, I've just returned from Angola and checked the IOC website and was really struggling to make out which forms I had seen and hadn't seen until I looked at Bird Forum and saw your post. Five out of the eight for me, so four armchair ticks. Shame I missed it on Palawan
  14. Ian Lewis

    Latest IOC Diary Updates

    Assuming no last minute surprises, of the c 61 changes, 34 affect me with 14 losses and 20 gain so six more on the life list. I'm particularly pleased with the chaffinch, Lesser Sandplover and Cockatoo splits and with the Western Flycatcher lump. The others I'm ok with either way
  15. Ian Lewis

    Inaccessible bird species

    Birdquest have repeatedly tried to get Afghan Snowfinch and Long-billed Reed Warbler on the list. As far as I know the first attempt (which was fully booked) was cancelled when the only available aircraft was taken out of service. They could have driven but that was exceptionally unsafe. The...
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