A bit OT but because I brought the text of Buchner's memoirs here I looked the case of his last combat sortie more carefully and here are some facts which shows that there are some problems with the info given in his memoirs, at least in its English edition.
According to the English edition of Buchner’s memoirs (Hikoki 2000) he was attacked during landing by a RAF Mustang. The soldiers at the tower had identified the attacker as a Mustang and the endnote 56 says “Believed to be an RAF Mustang from either 130 or 403 Squadron.” which is odd because both mentioned sqns were equipped with Spits, Mk XIVs and XVIs respectively, at that time. It is perfectly possible that the soldiers at the tower confused Spit and Mustang, especially if the Spit had clipped wings but it is odd that in the book they didn’t correct the confusion. And anyway I cannot find suitable RAF/RCAF/PAF etc claim for the Buchner case.
And according to
http://relikte.com/rotenburg/index.htm the Rotenburg airfield was occupied on 22 April 1945 by British troops, so the date given in the caption is too late.
Juha