Sticktight flea

Echidnophaga gallinacea
Echidnophaga gallinacea attached to a hen’s head.
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Siphonaptera
Family:	Pulicidae
Genus:	Echidnophaga
Species:	E. gallinacea
Binomial name
Echidnophaga gallinacea (Westwood, 1875)

Echidnophaga gallinacea, commonly known as the hen flea, stickfast flea and sticktight flea, occurs on a wide range of bird and mammal hosts. If uncontrolled it causes anaemia, loss of condition, severe skin irritation and sometimes death.

When feeding, female fleas can remain attached for up to 6 weeks at a single site on the host, causing ulceration at the attachment site. Males feed intermittently while displaying mating behavior. Eggs are laid in the ulcers that have formed on the host's skin. The larvae drop to the ground and feed on any organic debris found. Large numbers of the flea may congregate around the eyes, comb, wattles, and other naked skin on poultry - these are difficult to dislodge as their heads are embedded deep below the host's skin.

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Wikipedia