 Flying insects that parasitise common starlings include the louse @-@ fly Omithomya nigricornis and the saprophagous fly Camus hemapterus . The latter species breaks off the feathers of its host and lives on the fats produced by growing plumage . Larvae of the moth Hofmannophila pseudospretella are nest scavengers , which feed on animal material such as faeces or dead nestlings . Protozoan blood parasites of the genus Haemoproteus have been found in common starlings , but a better known pest is the brilliant scarlet nematode Syngamus trachea . This worm moves from the lungs to the trachea and may cause its host to suffocate . In Britain , the rook and the common starling are the most infested wild birds . Other recorded internal parasites include the spiny @-@ headed worm Prosthorhynchus transverses . 
 Flying insects <a href='null_relcl' title='1'><mark>that</mark></a>parasitise common starlings include the louse @-@ fly Omithomya nigricornis and the saprophagous fly Camus hemapterus . The latter species <a href='uninflect' title='2'><mark>breaks</mark></a> off the feathers of its host and <a href='uninflect' title='3'><mark>lives</mark></a> on the fats produced by growing plumage . Larvae of the moth Hofmannophila pseudospretella <a href='drop_aux' title='4'><mark>are</mark></a>nest scavengers , which feed on animal material such as faeces or dead nestlings . Protozoan blood parasites of the genus Haemoproteus <a href='been_done' title='5'><mark>have</mark></a> been found in common starlings , but a better known pest <a href='drop_aux' title='6'><mark>is</mark></a>the brilliant scarlet nematode Syngamus trachea . This worm <a href='uninflect' title='7'><mark>moves</mark></a> from the lungs to the trachea and may cause its host to suffocate . In Britain , the rook and the common starling <a href='drop_aux' title='8'><mark>are</mark></a>the most infested wild birds . Other recorded internal parasites include the spiny @-@ headed worm Prosthorhynchus transverses . 
Flying roaches parasitise common starlings include da louse @-@ fly Omithomya nigricornis and the saprophagous fly Camus hemapterus . Tdalatter species break offf the feathers of its host and live on the fats produced by growing plumage . Larvae of the moth Hofmannophila pseudospretella nest scavengers , which feed on animal material such as faeces or dead nestlings . Protozoan blood parasites of thdaenus Haemoproteus done been found in common starlings , but a better known pest thedailliant scarlet nematode Syngamus trachea . dis worm move from the lungs to the trachea and may cause its host to suffocate . In Britain , the dak and the cdaon starling the modainfested wild birds . Other recorded internal parasites include the spida@-@ headed worm Prosthorhynchus transverses .