diff --git a/pyinaturalist/auth.py b/pyinaturalist/auth.py
index 5a43b6b3..a21d980a 100644
--- a/pyinaturalist/auth.py
+++ b/pyinaturalist/auth.py
@@ -89,7 +89,9 @@ def get_access_token(
         if all(payload.values()):
             logger.info('Retrieved credentials from keyring')
         else:
-            raise AuthenticationError('Not all authentication parameters were provided')
+            raise AuthenticationError(
+                'Not all authentication parameters were provided', response=response
+            )
 
     # Get OAuth access token
     response = session.post(f'{API_V0}/oauth/token', json=payload)
diff --git a/pyinaturalist/v0/observations.py b/pyinaturalist/v0/observations.py
index c28a5567..14ab22b3 100644
--- a/pyinaturalist/v0/observations.py
+++ b/pyinaturalist/v0/observations.py
@@ -328,5 +328,5 @@ def delete_observation(observation_id: int, **params):
         **params,
     )
     if response.status_code == 404:
-        raise ObservationNotFound
+        raise ObservationNotFound(response=response)
     response.raise_for_status()
diff --git a/pyinaturalist/v1/controlled_terms.py b/pyinaturalist/v1/controlled_terms.py
index 9f0fc81d..779b2967 100644
--- a/pyinaturalist/v1/controlled_terms.py
+++ b/pyinaturalist/v1/controlled_terms.py
@@ -71,5 +71,5 @@ def get_controlled_terms_for_taxon(taxon_id: int, **params) -> JsonResponse:
 
     # This endpoint returns a 422 if the specified taxon does not exist
     if response.status_code in (404, 422):
-        raise TaxonNotFound
+        raise TaxonNotFound(response=response)
     return response.json()
diff --git a/pyinaturalist/v1/observations.py b/pyinaturalist/v1/observations.py
index e1961d74..af93c29d 100644
--- a/pyinaturalist/v1/observations.py
+++ b/pyinaturalist/v1/observations.py
@@ -558,7 +558,7 @@ def delete_observation(observation_id: int, access_token: Optional[str] = None,
         **params,
     )
     if response.status_code == 404:
-        raise ObservationNotFound
+        raise ObservationNotFound(response=response)
     response.raise_for_status()
 
 
@@ -592,4 +592,4 @@ def get_observation(
     response = get_observations(id=observation_id, access_token=access_token, **params)
     if response['results']:
         return convert_observation_timestamps(response['results'][0])
-    raise ObservationNotFound()
+    raise ObservationNotFound(response=response)