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

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  1. J

    Siberian Chiffchaffs at Ladywalk

    Siberian Chiffchaff Hi Nigel, The classic far East Tristis has no traces of yellow (other than the bend of the wing) or Olive unless on rump or tertials they have a distinct call and song. Fluvescents can have traces of yellow and olive in their plumage and have the same call and...
  2. J

    Siberian Chiffchaffs at Ladywalk

    BBRC 'tristis panel' A reliable picture of the taxonomic and plumage limits of tristis will emerge only after genetic studies currently in progress are concluded. However, in the meantime, the BBRC co-opted a 'tristis panel' to examine all reports of 'Siberian Chiffchaff' in the UK during the...
  3. J

    Siberian Chiffchaffs at Ladywalk

    Siberian Chiffchaff Hi Phil, Stefan also mentioned that a number of Ringers unless especially interested in Eastern race Chiffchaffs, would probably log them as Common Chiffchaff. Regards, John
  4. J

    Siberian Chiffchaffs at Ladywalk

    Ringed Chiffchaff Looking at the Ring from photographs Midlands BTO Ringing trainer and RSPB Middleton lakes warden Stefan Bodnar, concluded from what he can see of the ring. The ring is a BTO UK Ring and therefore the Chiffchaff must have been caught and ringed in the UK...
  5. J

    Siberian Chiffchaffs at Ladywalk

    Updated with new information regarding the Ringed Bird. Regards, John
  6. J

    Siberian Chiffchaffs at Ladywalk

    More Details by Alan Dean http://deanar.org.uk/tristis/casestudy2.htm Regards, John
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