 The male Madeira firecrest sings during the breeding season , often with its crest raised , and has a display which involves pointing its bill at another bird , showing the crest and strong face pattern . This differs from the display of the plainer @-@ faced goldcrest , which bows its head to emphasize the crest . The Madeira firecrest is monogamous . As is typical for the family , the nest is a closed cup built in three layers with a small entrance hole near its top . The nest 's outer layer is made from moss , small twigs , cobwebs and lichen , the spider webs also being used to attach the nest to the thin branches that support it . The middle layer is moss , and this is lined with feathers ( up to 3 @,@ 000 ) and hair . It is constructed by the female alone , although the male will accompany the female while she builds the nest over a period of a few days to three weeks . 
