Richard Prior
Halfway up an Alp
Afraid so Ken, like your colleagues I see where you’re coming from, that call at the very start is curious, but is very likely to be a Great Tit, they are real bu- -ers with their huge variety of calls. I assume BH didn’t literally mean they imitate Marsh Tit, but they do a call very similar at times (amongst their other ‘57 varieties‘). I have Blue, Great and Marsh daily throughout the year (all breed in our and the neighbours‘ garden), just to muddy the waters, our Marsh Tits also do a passable Great Tit version of their call which has caught me out a few times!That said, in order to imitate them, Great Tits would probably need exposure to an extent, something that is somewhat lacking hereabouts at the present time.
FWIW two independent colleagues “could hear” where I was coming from on this, albeit would have preferred to have heard “more” calls.😩
Looks like I’ll have to snap one!…just like the Wood Warbler.😉
Two more Hobby through this morning (!) and a few Siskin beginning to appear plus a frustrating skulker in the hedge/ forest edge this morning that had my Sylvia radar twitching, but never showed well enough ( I was starting to think/hope Garden Warbler but it was no doubt a Blackcap, ah well, onward and upward!).