• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Melanistic Northern Gannet or juvenile Cape Gannet? (1 Viewer)

Mícheál

Well-known member
Hi all,

I photographed this Gannet among a small plunge-diving Gannet flock of c 40 Northern Gannets on the west Sligo coast this evening (north-west Ireland) about 2 hours before sunset.

This bird flew through the flock and just kept going east. These photos are fair and representative images of the views I had of it, which were mostly through the camera viewfinder. The key features I have noted are the extreme darkness of the dark chocolate-brown upperparts, the dark half-collar, the uniformly dark secondaries & tail, and the dark underwing coverts.

One of the photos shows it silhouetted from the rear & in close proximity to a juvenile Northern gannet for size comparison.

Have you ever seen a Northern Gannet that looked like this?

Thoughts and suggestions welcome.

Mícheál Casey
 

Attachments

  • Easky Gannet 17112018 D _MG_8933.jpg
    Easky Gannet 17112018 D _MG_8933.jpg
    771.2 KB · Views: 72
  • Easky Gannet 17112018 A _MG_8941.jpg
    Easky Gannet 17112018 A _MG_8941.jpg
    105.2 KB · Views: 47
  • Easky Gannet 17112018 B _MG_8946.jpg
    Easky Gannet 17112018 B _MG_8946.jpg
    142.7 KB · Views: 45
  • Easky Gannet 17112018 C _MG_8932.jpg
    Easky Gannet 17112018 C _MG_8932.jpg
    199.7 KB · Views: 79
  • Easky Gannet w Juv Northern Gannet 17112018_MG_8955.jpg
    Easky Gannet w Juv Northern Gannet 17112018_MG_8955.jpg
    162.4 KB · Views: 33
Bog standard 2cy Gannet. Google '2cy Gannet' and you'll find quite a few that look like this. They do vary quite a bit which is also normal.
 
Last edited:
Bog standard 2cy Gannet. Google '2cy Gannet' and you'll find quite a few that look like this. They do vary quite a bit which is also normal.

Cheers Steve, I personally hadn't seen one that looked anything like this - I will probably find loads now!

Mícheál
 
I think the main reason this bird looks "unusual" is perhaps 2nd cal year birds (as this one, nearly a 3rd cal. year bird) are not very numerous around the British Isles. Juveniles disperse from the colonies early in the season (before the adults) and head towards southern areas that go down to Senegal. This type of plumage is not unusual on Portuguese waters, where the Immature/adult ratio is larger. Here's a few examples of birds approaching the OP bird (but of course not quite identical) and showing the range of normal variation.
1. https://www.flickr.com/photos/ruiworld/8126239483/
2. https://www.flickr.com/photos/the_rock_7/15241423367/
3. https://www.flickr.com/photos/milassantos/22800449626/
4. https://www.flickr.com/photos/dragoms/4697013897/
 
Think google might be broken ... not a single bird looking like the op's one in a quick look and scroll down!

It must be! Took me less than a minute to find these-all from the first page on Google, all 4 near the top and there were at least 4 more that I haven't linked to. None are a perfect replica-as I said, they vary considerably:

http://billaspinsnatureblog.blogspot.com/2008/07/gannet-lower-foulridge-reservoir-lancs.html

http://2.bp.blogspot.com/-jtoi6ssjxJ8/Tyrlk1taM5I/AAAAAAAAD5I/8qnNkZbA1H0/s1600/gannet.jpg

http://www.seawatchingestaca.com/uploads/2/0/7/6/20767658/masct-1_orig.jpg

http://www.western-isles-wildlife.com/sightings_images/gannet_imm_jk.jpg
 
Last edited:
2nd cal year birds (as this one, nearly a 3rd cal. year bird) are not very numerous around the British Isles. Juveniles disperse from the colonies early in the season (before the adults) and head towards southern areas that go down to Senegal.

There must be other sources for this info, but here's a paper that came up on a short Google search where some more detail is presented:

Veron, P. K. & M. P. Lawlor, M. P. 2009. The dispersal and migration of the Northern Gannet Morus bassanus from Channel Islands breeding colonies. Seabird 22: 37–47. PDF
 
Warning! This thread is more than 6 years ago old.
It's likely that no further discussion is required, in which case we recommend starting a new thread. If however you feel your response is required you can still do so.

Users who are viewing this thread

Back
Top