Yes they do have a white strip on their head.
only albino wrens
A blaze or a star A blaze being a long white strip going down, And a star being a little circle or so on the top of its head.
There are many species of wren and many more birds that are called wrens. Egg colour varies. European wrens (t. troglodytes) lays white eggs with tiny pink-brown spots at the blunt egg.
White markings are determined by genetics, however how white markings are inherited other than pinto and spotting patterns is still unknown.
White eggs thickly speckled with brown
wrens warble
Wrens are naturally completely insectivorous.
Wrens are a type of bird. Wrens can also refer to members of the former Women's Royal Navy Service. It is also a surname.
A group of wrens is called a flock or herd
Wrens was the unofficial name for the WRNS, The Womens Royal Navy Service.
some wrens do and some don't but only a few times they do ! ;) :) i am a boy
no one cares what COLOUR (spell it right) bluebirds like they're birds although i think its orange