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  1. D

    Subspecies groups and future splits

    I presume this depends on 'Horus Swift: identification, plumage variation and distribution' Justin J F J Jansen & Gerald Driessens Dutch Birding 2023
  2. D

    Subspecies groups and future splits

    pygmaeus was described by Alviola from Busuanga in the Calamianes/Calamian islands, so I think that would be the Calamian Frogmouth. However, I don't know of any authorities that recognise this taxon. If anyone has any information to suggest it is valid I would be interested to hear.
  3. D

    Subspecies groups and future splits

    It is treated in the Lynx guide as resident in Mindoro, the East Visayas and Mindanao in the Philippines. But there are no known morphological differences needed to split it. There are also no breeding records, but then cuckoo host species in the country in general remain very poorly documented.
  4. D

    Subspecies groups and future splits

    Chestnut-breasted Malkoha (Palawan) Phaenicophaeus curvirostris haringtoni Rough-crested (Cagayan) Malkoha Dasylophus superciliosus cagayanensis
  5. D

    Subspecies groups and future splits

    You have lost me here. I am referring to Ducula (carola) carola and D. (c) nigrorum
  6. D

    Subspecies groups and future splits

    Spotted and Black-breasted Imperial Pigeons?
  7. D

    Subspecies groups and future splits

    If you accept this you might also consider Tawi Tawi Imperial Pigeon. See the sound recordings here: https://media.ebird.org/catalog?mediaType=audio&regionCode=PH&taxonCode=pbipig1
  8. D

    Subspecies groups and future splits

    How are you dealing with possible species such as the Palawan Cuckoo-dove? Macropygia tenuirostris Bonaparte, 1854 OR : Philippines; Borneo AS, ENG 4167 ssp M. t. phaea McGregor, 1904 Calayan (far n Philippines) 4168 ssp M. t. tenuirostris Bonaparte, 1854 Philippines...
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