aVerAves Checklist S28652713

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Owner Peter Adriaens

Effort

Protocol:  Stationary
  • Observers:  1

Observations

  1. Number observed:  4
  2. Number observed:  8
  3. Number observed:  1
  4. Number observed:  10
  5. Number observed:  2
  6. Number observed:  3
  7. Number observed:  2
  8. Number observed:  25

    Details

    Large shearwaters (in direct comparison with Black-vented) with clearly longer wings and slower, more rowing wingbeats and slower 'arcs'. Flying at slower speed than Black-vented. Grey-brown upperwings (in at least one bird also with impression of blackish 'M' across) and grey-brown head contrasting with gleaming white underparts and largely white underwings. Tail moderately short. I am familiar with this species from California.

  9. Sooty/Short-tailed Shearwater

    Number observed:  1
  10. Number observed:  60
  11. Number observed:  3
  12. Number observed:  1
  13. Number observed:  1