Dragons are the colors of the houses.

[CLIFF1515]

No: HPFGUIDX 42158

   In the fourth book the champions had to fight  dragons for the 
1st task. These dragons are the color of the houses when you 
mix up the colors
.
* 1st the common welsch green is obviously green 
*2nd the swedish short snout is silvery and blue
*3rd the chinese fireball which is crimson and gold
*4th the hungarian horntail which is has a black body, bronze 
spikes and yellow pupils.
  I'm not sure if it's all that important or even intentional, it's just
kind of cool and I wanted to share it.

(PS: I oppologise if this has been used before i didn't have time 
to search every inch of the archives:P)
                                                         
                                                              cliff1515