Identity of aircraft that mined the approaches to Holyhead port in July-August 1940?

[Nick Beale]

AFAIK most or all of the mining during the Battle of Britain was being carried out by units of the 9. Flieger Division but the Luftwaffe's daily sitreps don't go into detail, usually just referring to aircraft of the Division carrying out "special operations".

Here's one ULTRA from 5 August 1940:

At 0745 Seefliegerhorst 12/1 informed 9 Flieger Division that 50 air mines (Luftminen) type B and 40 air mines (LM) type A had arrived with escort detachment of Stabsfeldwebel Stefan. They were to be stored 1600/6/8. (A)

The “air mine advanced HQ” had not yet arrived. (C)

At 0800/5/8 Ltn. Lindner reported to Fl.Div. 9 that LM Vorkommando (air mines advanced HQ), strength 2 officers and 10 men had arrived at Brest Harbour station. (A)

NOTE: (A) and (C) are reliability ratings for Bletchely Park's interptretation of parts of the original message. (A) was the highest.

Also, from a Bletchley Park special report on the Luftwaffe order of battle, dated 5 August 1940: the 9. Fl.Div. included KG 4, KG 40, KGr. 126 and Kü.Fl.Gr. 106.