Orca vocalisations in the fog.... The Sea’s Secret Choir: Northern Resident Orca Vocalisations In the cathedral of the Pacific, the Northern Resident orcas sing. Not with words, but with a language older than memory, clicks, whistles, and calls that ripple through the deep like sacred verses. Each matriline carries its own dialect, a signature of lineage passed from mother to calf like a lullaby. These aren’t random sounds, they’re acoustic fingerprints, distinct and recognizable. A call from A5