I recorded
this in 1982, by hanging out of an attic window at about 4:30am.
This was as close as I could get to 'Blackie' who always sat high up in the
same chestnut tree. The time was dictated by the need to get zero traffic
noise. Even then I was at this every morning for about a week!
The MIC was a bog-standard Unidyne B plugged straight into a Casio DA-7
portable DAT machine (cost an arm and a leg in those days).
1982 and you had a portable DAT!? Typo, porky, onsetting alzheimer's
or... time travel?