Apart from physical wear and tear, feathers face the onslaught of fungi, ectoparasitic feather mites and birdlice.

As with other flock-living passerines, the Golden-crowned Sparrow is prone to elevated levels of feather mites.

All parasites fascinated her: bird lice, feather mites, ticks, flukes.

They contain many feather mites, being ectoparasites of birds and occasionally mammals.

Several species of feather mites, helminth and blood parasites have been described from the species.

They contain many feather mites.

A number of feather mites have been recorded in the genus, including Proctophyllodes glandarinus on Firecrest.

Proctophyllodes is a genus of feather mites, found on passerine birds.

The birds themselves host species belonging to more than four genera of feather mites.