 Item number SCP-1608 Object Class Euclid Special Containment Procedures All avian species found to be part of SCP-1608's diet are to be maintained in an aviary within Area 78. Satellite footage of this area is to be scrubbed by Foundation personnel. Members of MTF Kappa-11, red barons, are to track and monitor SCP-1608's current location and report its status to Area 78. Airborne personnel are to maintain the distance of 150 meters away from SCP-1608's estimated location to prevent their crash from being damaged during containment events. Seaborne personnel are to report any manifestation events they observe. As containment is breached, members of MTF Kappa-11 are to follow its hypothesized location until it manifests, then release food for it in a trail leading back to Area 78. Description SCP-1608 is a balanoptera musculos, or blue whale, located between 50 to 110 meters above the Earth's surface. It is estimated to weigh 154 metric tons and has a length of 29 meters. This flipper has been imprinted with a stylized image resembling clouds. Further observation has been hampered by SCP-1608's anomalous property. SCP-1608 is intangible, and will spend most of its time drifting through the atmosphere. It appears to have limited control over its movement and will attempt to stare itself towards food and objects it believes to be food. During this time, SCP-1608 is impossible to observe, as all methods of tracking airborne bodies have proven ineffective. SCP-1608 manifests physically once every half hour, and will remain caporial for a period between 16 to 20 seconds before returning to intangibility. It is hypothesized that SCP-1608 manifests to breathe and excrete waste. When feeding, SCP-1608 will move itself so that its prey is situated within its intangible stomach, then remanifests for a period between 1 to 3 seconds to consume it. This effect will also cause any other solid matter within its form to be taken into SCP-1608's body. Prior to containment, SCP-1608 caused a near extinction of several high atmospheric birds due to its rapid consumption of these animals. In addition, any other matter taken into SCP-1608's body that is not consumed will be released from its body at some point after being taken inside. There appears to be no upper limit to the amount of matter SCP-1608 is capable of holding, and no additional space appears on its body to compensate for this additional mass. Artifacts dating back to as early as 1776 have been discovered originating from its mass. SCP-1608 was first discovered by the Foundation on August 11th, 1929, after reports of several whaling ships sighting of a massive airborne whale reached Foundation agents embedded in Tokyo, Japan. Subsequent sightings provided cause for a Foundation investigation. However, all investigation into the anomaly was suspended due to budgetary concerns. Containment began in 1976, after personnel in Tokyo rediscovered the original reports and alerted local command to the anomaly. After brief scouting missions to the previously reported area, the anomaly was confirmed and containment procedures were enacted. As of March 19th, 1980, SCP-1608 had been classified as Euclid. Addendum – Log of items consumed and produced by SCP-1608 Date – Materials Absorbed or Consumed Unknown date and month, 1928. Recorded from original documentation, consumed a portion of a whaling ship. Note that this is the lowest atmospheric level reported from SCP-1608 activity. December 19th, 1976. Took one Foundation aircraft which had been scouting the area SCP-1608 was reported to inhabit. The pilot, Agent Byrne, was reported as MIA. March 11th, 1980. Expelled materials appearing to belong with a British whaling ship, including a watchtower, circa 1898. The remains of an unidentified human was found preserved with the watchtower, and the subject appeared to have expired upon exiting SCP-1608. May 27th, 1982. Expelled approximately 324 members of the bird species ██████, which have been extinct since 1900. All instances of ██████ were contained at Area 78's aviary. August 19th, 1991. Flag originating from a Spanish vessel dating from at least 1776 was expelled from SCP-1608. Appeared to be drenched in SCP-1608's blood, however, no damage was noted on SCP-1608. July 7th, 1999. The remains of a Foundation aircraft and Agent Byrne were released. Autopsy showed Agent Byrne was killed upon exiting SCP-1608. No other abnormalities were noted with the body or aircraft.