Risa
Try Deep freeDeep
Risa
Try Deep freeDeep
Fluke of Sherwina Confirmed in the catalog

Sherwina @11390

Sherwina was Sherwin for tail tips that look to have been dipped in paint. But a clear photo of her hemispherical lobe by Deana Glenz on Sept 16, 2017 shows she is a she. She is quite unusual among northeast Pacific humpbacks in alternating between British Columbia and California feeding grounds, which generally support separate humpback populations.

Salish Sea · North Pacific

Public · Not set by this account.

85 Following 100 Followers
44
Sightings
10
Years
4
Crossings
Last 12 months 3 sightings
  1. N 2025-11: 0 sightings
  2. D 2025-12: 0 sightings
  3. J 2026-01: 0 sightings
  4. F 2026-02: 0 sightings
  5. M 2026-03: 0 sightings
  6. A 2026-04: 0 sightings
  7. M 2026-05: 0 sightings
  8. J 2026-06: 0 sightings
  9. J 2026-07: 0 sightings
  10. A 2026-08: 0 sightings
  11. S 2026-09: 3 sightings
  12. O 2026-10: 0 sightings

Activities

10 in Risa
Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
 Green Water, Good Company Sep 11 – 18, 2026 · Salish Sea · 3 sightings Deepest dive137 m Longest dive6:14
Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
 Salish Sea · Sep – Oct 2025 Sep 21 – Oct 5, 2025 · Salish Sea · 2 sightings Deepest dive124 m Longest dive5:34
Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
 Au'au Channel · Feb 2025 Feb 26, 2025 · Au'au Channel · 2 sightings Deepest dive54 m Longest dive2:23
Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
 Salish Sea · Aug – Oct 2024 Aug 12 – Oct 5, 2024 · Salish Sea · 5 sightings Deepest dive104 m Longest dive4:07
Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
 Salish Sea · Aug – Nov 2022 Aug 22 – Nov 27, 2022 · Salish Sea · 6 sightings Deepest dive145 m Longest dive4:36
Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
 Hawaiian Islands · Mar – Apr 2021 Mar 15 – Apr 7, 2021 · Hawaiian Islands · 2 sightings Deepest dive33 m Longest dive1:29
Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
 Salish Sea · Sep 2020 Sep 26, 2020 · Salish Sea · 1 sighting Deepest dive45 m Longest dive2:18
Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
 Salish Sea · Oct 2019 – Jan 2020 Oct 3, 2019 – Jan 2, 2020 · Salish Sea · 4 sightings Deepest dive126 m Longest dive4:01
Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
 Monterey Bay · Jul 2018 Jul 11 – 13, 2018 · Monterey Bay · 2 sightings Deepest dive— Longest dive—
Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
 Monterey Bay · Aug – Nov 2017 Aug 6 – Nov 24, 2017 · Monterey Bay · 13 sightings Deepest dive— Longest dive—

✳ Dive stats modelled, not measured

Sighting records from Happywhale, published as occurrence data via GBIF. Individual records are licensed CC0 1.0, CC BY 4.0 or CC BY-NC 4.0, depending on the contributor.

The photographs and fluke identifications behind every sighting are the work of the contributing observers — the citizen scientists, naturalists and operators who logged them, each named in the underlying GBIF occurrence record. Every activity links out to its source encounters on Happywhale. Basemaps © OpenStreetMap contributors (ODbL).

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Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.