Photino Birds, Kardashev Scale Wiki

The Photino Birds are an ancient and extremely powerful species of dark matter entities from Steven Baxter's Xeelee Universe. They are the rivals of the Xeelee. They are composed entirely of dark matter and interact with normal matter only gravitationally. They are thus invisible, intangible, and effectively invulnerable; only extreme gravitational fields can harm them. They leech thermal energy from the cores of stars. Their attacks on the stars of the universe continued for billions of years.

Native Bird Species at Flight 93 National Memorial

How would you describe Earth if it was a Type 1000 civilization on the Kardashev scale? - Quora

Phoria Cards - Near and Distance, Assessments: Bernell Corporation

Caprimulgiform, Nocturnal Birds of Prey & Insectivores

kardynałek żółtodzioby - eBird

Category:Alien Races, Kardashev Scale Wiki

Kardashev scale - Wikidata

Kardashev scale - Wikipedia

Gynandromorph No.5 (California Quail) – Paradigm Gallery + Studio

Xeelee, Kardashev Scale Wiki

How Long Do Cardinals Live?

Kardashev Scale Wiki