Changing colour in a coloured?

[only_me]

Wondered if anyone would know what this coat change is called?
He is a skewbald but is starting to get more white through his coat in patches and appears to have a dark patch of hair completely different to the regular bay and hasnt bleached in the sun! It is very strange especially on the rump!

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You can see the colour change starting here

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Anyone any ideas? Its not dirt as it is the same after washing

 

[Meowy Catkin]

It's just sabino causing flecks in the coat.

 

[horse.love92]

Mine has flecks above his tail so he's a rabicano

 

[Meowy Catkin]

Rabicano is a very specific pattern of roaning. I have read that it is though to be a form of Sabino (really complicated polygene).

This photo shows Rabicano clearly (on a black base colour in this instance) with the 'skunk' tail and roaning on the flanks.

ETA - A clear shot of a Rabicano 'skunk' tail.

 

[kellybee]

Interesting! I have a 16+ standie, very dark bay with this on one stifle/belly. Thanks OP for asking, I always thought it was a sign of his age ( wasn't passported when we first had him and vet estimated he was about 16

 

[mulledwhine]

Through different times of the year my completely black boy gets those flecks, he has got them ATM, then they will black up again!!!

What is that, if anything ?

 

[Meowy Catkin]

My gelding is a chestnut sabino with a roany patch on his elbow. It disappears when his winter coat comes through, then it's back again when he's in his summer coat.

 

[mulledwhine]

That's what happens to mine, so does that make him a black sabino ?

 

[mulledwhine]

Pressed send to quick

The reason why I am interested is that photos on tinternet show horses that have large patches of white, not flecks that come and go!!

Not that it matters to me, but has sparked an interested

 

[NeverForEver]

As mine have gotten older they've all developed grey/white patches (especially the 29 year old HA) and I always just thought this was a symptom of old age no? Not sure about the bay appearing though, I've never really thought much about slight colour changes, probably because it's too complicated with all the sciencey stuff

 

[only_me]

Ah I had always assumed he was tobanio! It's Definately not an age thing as he is only 7

 

[Meowy Catkin]

He is a Tobiano - he just has sabino too.

Old horses do get 'old age grey hairs', but generally they are mainly on the face.

 

[scewal]

My skewbald is covered in roaning on her bay patches.