Adult fleas are generally brownish in colour, and 1/32"-5/16" long.
The eyes as well as the antennae are apparent. Their mouthparts are well adapted for piercing skin and sucking blood and project downwards from the head.
This species is the most common bird flea, the hen flea.
Lifecycle
Bird fleas can only live for a short time indoors and only in nests.
They breed during the nesting period when the host and/or young are available for regular blood meals.
Habits
Adult bird fleas live in bird nests. When the birds move from the nest, the adult fleas must find a new host.
If the nest is reused, the pupae will hatch,mate and continue the breeding cycle.
Bird fleas can multiply enormously in hen houses, breeders, batteries etc.