Impressive easterly movement of Hirundines seen from our south facing garden at Llawhaden between 12-12:45 today. Mostly Swallows but also some House and Sand Martins. Conservative estimate of about 1,000 went through (20-30 per minute and one loose flock of at least 250) in the time stated but there must have been many more as the birds I counted were all within about 100m of the house and looking south there seemed to be birds moving as far as the eye could see! a fantastic sight. Was hoping I might see a Hobby following them but was not to be!