Recorded on 13 dates, Dungeness 4 on 3rd April 1946 (AM.Morley).
Dungeness 20th, 28th April 87.
Dungeness 2nd,10th April 93.
Dungeness (3) and New Romney 1st, Dungeness 2nd, Dungeness, Lydd and
New Romney 3rd April 99.
Lydd 4th April 02.
Dungeness and Lydd 3rd April 05.
Greatstone 9th, 11th, 2 sites at Dungeness 15th April 09