Arquivos de periódicos de maio 2020

08 de maio de 2020

Another Duck Bulla Bone/Syrnix

As I said in my post Domestic Muscovy Duck Duck Quack Box/Bulla Bone/Syrnix, I feel there's a general lack of waterfowl syrnix references online. I shared mine, but it was not in prime shape. Fortunately, I now have a second Cairina moschata domestica quack box in much better condition than my previous one that I think would be very valuable to share.

The new one is one the left, the old one on the right.

I assumed my old one might have been so thin because of how I cleaned it, but it makes sense Muscovy voice boxes are so much thinner than other ducks (1, 2) when you think about their calls. Muscovy ducks make low, weak and breathy sounds, and aren't generally wont to vocalizations.

I'm thrilled at the concept of more obscure anatomical elements being able to be identified so precisely. If you're in Muscovy duck territory and find a disembodied voice box around an inch/3 centimetres long that is exceptionally paper-y and thin, the good likelihood (I assume) is that it would be a Muscovy. Very few ducks are as quiet as them.
It's easy to identify mute swan sternums on a similar principle; all other Cygnus species have a thick keel to store extra windpipe to project their calls, while mute swans are the most "mute" of swans and lack this anatomical feature. You can see that clearly here with a Whooper swan as comparison, but all other Cygnus have that extra windpipe storage.

If any other views or measurements could be helpful to you, comment or message me and I'll be more than happy to take pictures of whatever you need.

8/10/23
Found another photo, this time of an Anas acuta syrnix: http://museum2.utep.edu/archive/birds/DDsyrinx.htm

Posted on 08 de maio de 2020, 12:03 AM by lizardking lizardking | 3 comentários | Deixar um comentário

31 de maio de 2020

Some Bird Sternums

LANDFOWL:

Turkey (Meleagris gallopavo) sternum:


Peafowl (Pavo) sternum (male):


Domestic Chicken (Gallus gallus domesticus):


(from top to bottom)
Peacock, chicken, turkey.

Waterfowl

Domestic Muscovy Duck (Cairina moschata domestica):


Chicken vs Muscoy duck:

Feral Pigeon (Columba livia domestica)
Monk parakeet/Quaker Parrot (Myiopsitta monachus)
Eurasian collared dove (Streptopelia decaocto)


Duck, chicken, pigeon, monk parakeet, collard dove:

Posted on 31 de maio de 2020, 04:39 AM by lizardking lizardking | 3 comentários | Deixar um comentário