Metagenome from oral swab of South polar skua
Oral swab was stored in UTM buffer. 200 l of the UTM buffer was used to extract viral DNA with  the High Pure Viral Nucleic Acid Kit (Roche Diagnostics, USA). The resulting circular viral DNA was amplified by rolling-circle amplification using a TempliPhi Kit (Cytiva, USA). The amplified circular DNA was combined with the viral DNA extract and used to generate a sequencing library with an Illumina DNA Library Prep Kit (Illumina, USA). The library was sequenced on an Illumina NovaSeq X Plus sequencer (Illumina, USA) at Psomagen Inc. (USA).