diff --git a/Changelog b/Changelog
index 2b484de4..6b1dd3d1 100644
--- a/Changelog
+++ b/Changelog
@@ -32,7 +32,7 @@ v. 0.16.0:
 
            Add ScriptFields object used as parameter script_fields of Search object (aguereca).
 
-           Add IdsQuery, IdsFilter and deleteByQuery (aguereca).
+           Add IdsQuery, IdsFilter and delete_by_query (aguereca).
 
            Bulk delete (acdha).
 
diff --git a/pyes/es.py b/pyes/es.py
index 1e200de9..9b857c0d 100644
--- a/pyes/es.py
+++ b/pyes/es.py
@@ -1139,7 +1139,7 @@ def delete(self, index, doc_type, id, bulk=False, querystring_args=None):
         path = self._make_path([index, doc_type, id])
         return self._send_request('DELETE', path, params=querystring_args)
 
-    def deleteByQuery(self, indices, doc_types, query, **request_params):
+    def delete_by_query(self, indices, doc_types, query, **request_params):
         """
         Delete documents from one or more indices and one or more types based on a query.
         """
@@ -1157,7 +1157,7 @@ def deleteByQuery(self, indices, doc_types, query, **request_params):
             # A direct set of search parameters.
             body = json.dumps(query, cls=self.encoder)
         else:
-            raise InvalidQuery("deleteByQuery() must be supplied with a Query object, or a dict")
+            raise InvalidQuery("delete_by_query() must be supplied with a Query object, or a dict")
 
         path = self._make_path([','.join(indices), ','.join(doc_types), '_query'])
         return self._send_request('DELETE', path, body, querystring_args)
diff --git a/pyes/query.py b/pyes/query.py
index ec8b534d..4a0b61b2 100644
--- a/pyes/query.py
+++ b/pyes/query.py
@@ -105,7 +105,7 @@ def __init__(self,
         self.fields = fields
         self.start = start
         self.size = size
-        self.highlight = highlight
+        self._highlight = highlight
         self.sort = sort
         self.explain = explain
         self.facet = facet or FacetFactory()
@@ -115,6 +115,7 @@ def __init__(self,
         self.index_boost = index_boost
         self.min_score = min_score
         self.stats = stats
+        self.bulk_read = bulk_read
 
     def get_facet_factory(self):
         """
@@ -141,8 +142,8 @@ def serialize(self):
             res['size'] = self.size
         if self.start is not None:
             res['from'] = self.start
-        if self.highlight:
-            res['highlight'] = self.highlight.serialize()
+        if self._highlight:
+            res['highlight'] = self._highlight.serialize()
         if self.sort:
             res['sort'] = self.sort
         if self.explain:
@@ -166,6 +167,12 @@ def serialize(self):
             res['stats'] = self.stats
         return res
 
+    @property
+    def highlight(self):
+        if self._highlight is None:
+            self._highlight = HighLighter("<b>", "</b>")
+        return self._highlight
+
     def add_highlight(self, field, fragment_size=None,
                       number_of_fragments=None, fragment_offset=None):
         """Add a highlight field.
@@ -173,9 +180,9 @@ def add_highlight(self, field, fragment_size=None,
         The Search object will be returned, so calls to this can be chained.
 
         """
-        if self.highlight is None:
-            self.highlight = HighLighter("<b>", "</b>")
-        self.highlight.add_field(field, fragment_size, number_of_fragments, fragment_offset)
+        if self._highlight is None:
+            self._highlight = HighLighter("<b>", "</b>")
+        self._highlight.add_field(field, fragment_size, number_of_fragments, fragment_offset)
         return self
 
     def add_index_boost(self, index, boost):