Per 
Image of Adult Entity
Item #: SCP-XXXX
Object Class: Safe
Special Containment Procedures: Agents should view the dwelling of individuals in southern Japan who rarely leave their home at least once a year to check for wild instance groups.
Any instance group found outside of containment is to have one instance bought to the facility currently housing the contained instances the remaining instances are to be terminated and any hosts should undergo surgery to remove undeveloped instances from their body before being administered amnestics.
Each contained adult instance should remain in individual cells and not be give access to uncovered human skin. When interacting with instances faculty are to use no less then three layers of stab resistant cloth and ballistic face masks. Should any adult instance reach the end of their lifespan a D-Class should be made available to serve as a host to produce more undeveloped instances.
Undeveloped instances may be kept stable at 237K or lower temperatures, if no new instances are needed they should not be removed from a refrigerated container at this temperature. At this time no more then 100 undeveloped instances are to be kept, extraneous instances are to be terminated by destruction of their outer membrane.
Hosts should remain in observation when incubating new Adult instances but be removed once the instance has hatched and be should administered amnestics.
Description: SCP-XXXX is a anomalous sub species of Gallus gallus native to southern Japan. The subspecies known as, Gallus gallus parasitus, have pastel light red feathers. All feathers of the adult instances are pin feathers, the molting of which is a sign of illness in the instance. While they do not need to eat, they are similar to other members of Gallus gallus in all other aspects except their reproduction.
Gallus gallus parasitus, have only female members of the subspecies all of which are fertile from hatching. G. g. parasitus has a specially developed organ that retracts into the cloaca when not in use, this organ allows instances to lay their eggs in the human host's hyperdermis. From here the egg will attach to nearby blood vessels and leach nutrients from the host for a 28 day period before the egg breaks the dermis and epidermis and a new instance is born, this instance will grow to a adult in 8 days after hatching. They will not attach to non-human subjects.
Eggs can be removed with surgical means though the surgery requires specialized tools, eggs that are removed remain alive for 2 days unless the outer membrane is breached, and resemble a normal egg from the Gallus gallus species. This death can be indefinitely postponed by subjecting the undeveloped instance to a tempiture below 237K. If surgically reintroduced into a host it will continue growth unaffected by the removal.
Hosts of G. g. parasitus experience intense phobias of the outdoors, heat, and the sun often darkening their dwelling with currants and refusing to leave their dwelling, this combined with the distinctive lumps of infection means that hosts will remain within their dwelling to the point of starvation. Hosts are unable to see instances, even as dozens live in their dwelling.
G. g. parasitus will remain in groups that remain with a single host or a small number of hosts in a single dwelling, should all their current hosts die they leave the building at night and move as one or two groups to new hosts. Any undeveloped instances terminate with the death of the host.
Instances will uses their claws and beaks to tear away coverings and clothing preventing them from laying in the host, however their claws and beaks are non-anomalous and can be stopped by materials that prevent other Gallus gallus species from clawing or peaking.
G. g. parasitus became known to the foundation when a group of instances mistakenly believed to be G. g. domesticus was captured by Kumamoto animal control, and noted as not eating anything but remaining healthy.
Addendum: As of 03/16/2020 all know instances are in foundation custody. Project Hen Watch is to remain in service for two years.
