message from swallow lady to Garth re:swallows. (Below is a link to the article where Garth wrote an article / comment http://birdtablenews.com/2009/09/recording-swallow-numbers/ )
Your observations match mine completely.our swallows(now in 16th year)always nest up on the eaves in a messy sort of garage.
they fly in through a little open window.
last year was our best ever with approx. 30 fledglings. 3 concurrent nests with 4 chicks each,and then 2 further sequences. Big Daddy with the longest forks sings to me sitting on the Sky dish when I garden.I think that’s his right as he owns the sky.We live in Wales +have a cattle opposite so lots of flies..
The house martins are very different +make the nest under eaves outside with lots of mud +produce lots of darker mess cf. the white from swallows!
I,m not” official,recorder” just a swallow lover.I do read the BTO website though.