diff --git a/aborist/sources/crawler/__init__.py b/aborist/sources/crawler/__init__.py
index 8928083..fbcd665 100644
--- a/aborist/sources/crawler/__init__.py
+++ b/aborist/sources/crawler/__init__.py
@@ -39,6 +39,17 @@ honor ``robots.txt`` — that's what the underlying parser already does
 when given a URL.
 """
 
+# Suppress bs4's "you're parsing XML with the HTML parser" warning when the
+# crawler hits a sitemap.xml / RSS feed via the generic page handler. Benign
+# (parsing still works) but spams stderr during a deep BFS. Filtering here —
+# at the aborist subpackage boundary — keeps the verbatim lift untouched.
+import warnings as _warnings
+try:
+    from bs4 import XMLParsedAsHTMLWarning as _XMLParsedAsHTMLWarning
+    _warnings.filterwarnings("ignore", category=_XMLParsedAsHTMLWarning)
+except ImportError:  # pragma: no cover
+    pass
+
 from aborist.sources.crawler.async_web_fetcher import (
     AsyncWebFetcher,
     CrawlMode,