white birds with brown skull caps

[Pineapple]

Some of my British white birds have the common brown spots on the top of their head.

I don't know a lot about avian embryology, but I am wondering if this is due to an issue in neural crest formation. If they were mammals, that would be my best guess. Just curious.

 

[ChickenLegs13]

They got a spot on their head to tell them apart from an A&M would be my best guess. If they were mammals they would have all white hair with no spot because mammels have no neural crest formation issues.

 

[Pineapple]

Of course mammals have a neural crest. All vertebrates do. That's the whole point of being a vertebrate (qua vertebrates).



Edited by Staff

 

[weirdones]

White quail with spots on their heads are A&Ms. Vertebrates means Internal spine and bones. Invertebrates have a hard outside. This doesn't mean crests. I'm a mammal and don't have a crest.

 

[weirdones]

https://en.m.wikipedia.org/wiki/Vertebrate

https://en.m.wikipedia.org/wiki/Invertebrate

 

[ChickenLegs13]

Of course mammals have a neural crest. All vertebrates do. That's the whole point of being a vertebrate (qua vertebrates).

That was my best guess.



Edited by Staff

 

[weirdones]

So I looked up neural crest. Lol. I'm lost. Sorry I threw my 2 cents in. Lol

 

[Pineapple]

You are forgiven--this time!

 

[ChickenLegs13]

Must be a touchy subject, I see the mods are weilding their Bam Hammers.

 

[Pineapple]

It's not a touchy subject, it's scientific concepts which must be spoken about correctly or not at all.

For those interest in vertebrate embryology, here is an article which talks about and describes the function of the neural crest: http://www.ncbi.nlm.nih.gov/books/NBK6098/