diff --git a/tests/unit/components/Explore/ExploreV2/buildQueryParams.test.js b/tests/unit/components/Explore/ExploreV2/buildQueryParams.test.js
index e84c419c0..ec85a0b62 100644
--- a/tests/unit/components/Explore/ExploreV2/buildQueryParams.test.js
+++ b/tests/unit/components/Explore/ExploreV2/buildQueryParams.test.js
@@ -37,6 +37,17 @@ describe( "buildExploreV2QueryParams", ( ) => {
       const params = buildExploreV2QueryParams( state );
       expect( params.project_id ).toBe( 12 );
     } );
+
+    it( "maps an unobserved subject to unobserved_by_user_id", ( ) => {
+      const state = {
+        ...initialExploreV2State,
+        subject: { type: "unobserved", user: { id: 99 } },
+      };
+      const params = buildExploreV2QueryParams( state );
+      expect( params.unobserved_by_user_id ).toBe( 99 );
+      expect( params.user_id ).toBeUndefined( );
+      expect( params.taxon_id ).toBeUndefined( );
+    } );
   } );
 
   describe( "location", ( ) => {
diff --git a/tests/unit/components/Explore/ExploreV2/components/ExploreV2Header.test.js b/tests/unit/components/Explore/ExploreV2/components/ExploreV2Header.test.js
index 09b709ef3..6f220b089 100644
--- a/tests/unit/components/Explore/ExploreV2/components/ExploreV2Header.test.js
+++ b/tests/unit/components/Explore/ExploreV2/components/ExploreV2Header.test.js
@@ -124,6 +124,19 @@ describe( "ExploreV2Header", () => {
     expect( screen.getByTestId( "IconicTaxonName.iconicTaxonIcon" ) ).toBeTruthy();
   } );
 
+  it( "renders the Unobserved title and location without a subject thumbnail", () => {
+    setState(
+      { type: "unobserved", user: { id: 7, login: "seth_msp" } },
+      { placeMode: EXPLORE_V2_PLACE_MODE.WORLDWIDE },
+    );
+    renderComponent( <ExploreV2Header /> );
+
+    expect( screen.getByText( "Unobserved" ) ).toBeTruthy();
+    expect( screen.getByText( "Worldwide" ) ).toBeTruthy();
+    expect( screen.getByTestId( "ExploreV2Header.unobserved" ) ).toBeTruthy();
+    expect( screen.queryByTestId( "ExploreV2Header.subject" ) ).toBeNull();
+  } );
+
   it( "renders only the place name when there is no subject", () => {
     setState( null );
     renderComponent( <ExploreV2Header /> );
diff --git a/tests/unit/components/Explore/ExploreV2/screens/UniversalSearch.test.js b/tests/unit/components/Explore/ExploreV2/screens/UniversalSearch.test.js
index 2daccd82d..631c63c7b 100644
--- a/tests/unit/components/Explore/ExploreV2/screens/UniversalSearch.test.js
+++ b/tests/unit/components/Explore/ExploreV2/screens/UniversalSearch.test.js
@@ -382,6 +382,30 @@ describe( "UniversalSearch screen", ( ) => {
       );
     } );
 
+    it( "stages an unobserved subject when the unobserved row is tapped", async ( ) => {
+      renderComponent( <UniversalSearch /> );
+
+      await actor.press( screen.getByTestId( "DefaultSearchOptions.unobserved" ) );
+
+      // the selection is staged locally, not written to context until Search
+      expect( mockDispatch ).not.toHaveBeenCalled( );
+      // the subject field shows the "Species I haven't observed" label
+      expect(
+        screen.getByDisplayValue( i18next.t( "Species-I-havent-observed" ) ),
+      ).toBeTruthy( );
+
+      await actor.press( screen.getByTestId( "UniversalSearch.searchButton" ) );
+      expect( mockDispatch ).toHaveBeenCalledWith(
+        expect.objectContaining( {
+          type: "SET_SUBJECT",
+          subject: expect.objectContaining( {
+            type: "unobserved",
+            user: expect.objectContaining( { id: 99 } ),
+          } ),
+        } ),
+      );
+    } );
+
     it( "hides the current user row when logged out", ( ) => {
       useCurrentUser.mockReturnValue( null );
       renderComponent( <UniversalSearch /> );