The Heeresbericht, published on 11 July 1916, reports for the western front 5 losses of enemy airplanes (4 by air combat):
"... der Feind (verlor) an der Somme und westlich von Vouziers je zwei Flugzeuge. Außerdem ist ein englischer Doppeldecker bei Courcellete (an der Straße Bapaume-Albert) durch Abwehrfeuer heruntergeholt."
When I did deal with the Heeresbericht in the past then I noticed the HB reports mostly the incidents of the day before (11th for the 10th) but in some cases the HB does also report older and sometimes even incidents of the same day! The latter behaviour seems to be in contradiction to the "break time" for the reports but it happens.
On the other hand I have also often noticed delayed reports on the other, Allied side of the lines (e.g. loss of the 10th July recorded on 11th July).
Anyway. IMHO The location Vouziers (Champagne) in the HB (calls mostly bigger locations near the real location) seems to be a good choice.
I would suggest that Emile Bouderie´s loss fits to the victory west of Vouziers [in fact probably more south to V.!] by a "Helmut Baldamus" but the name puzzles me. I know
Hartmuth Baldamus but the latter did not get a confirmation for this date according to my sources. (... but the name Baldamus is not that seldom in Germany and Saxony) Sadly, my notes of the Kofl 3 reports start not before end of July 1916.