I´ve already asked about this on another thread, never used this section of the forum before. Last evening, about 9.30pm, in mixed level woodland with a soggy bottom, south of Bray, Ireland, I had very brief unsatisfactory views of a passerine moving through the very top of the tree canopy. It was making an unusual alarm call that I haven´t heard before. A harsh "tchack" or "tchup" (depending on how you pronounce it!), repeated five to seven times, then a aspirated "Hveeoo", descending slightly in tone on the last "oo", and sounding like an intake of breath through clenched teeth. So it went something like this: "Tchack, Tchack, Tchack, Tchack-Tchack, Hveeoo". All I saw was a light brown underbelly on a bird the size and shape of a blackcap, as it flitted from tree to tree. The "Tchack" call was much fuller and rounder than the ticking calls of robin or wren. Sorry there´s not much to go on, but the light was fading and the foliage was dense. I can´t find anything like the call on any of the CD´s I have. I´ve tried the usual suspects, plus redstart, to no avail. Any ideas, anyone? Thanks!