The complication of cock-bird call suppression has already been covered and..
there can be variations of the cock Lavender's call
Sound clip below is of a bird now called Alan - originally sold to me as a Lavender hen called Elaine
As the calls evolved/ varied - a name-change was required to Alan
Several recordings have been made of Elaine/ Alan which show how over a short time his calls have varied.
First half of sound clip is Alan in May being very circumspect - followed by him in June in full cock-call voice
(DNA test confirmed - Alan)
Cock call variations
sound scopes below show Alan
with some initially confusing cock call variation
Sound Scopes - Alan
early variationsthen in full voice
So, what about the Lavender hens - go to - Hen calls and variation