BIRDTAMs do exist, do a Yahoo search for the word. I would like a reference for the format though, if anyone has one, it is not in the ICAO documentation.
The 'bird question' should have been removed from the JAA exams in the UK because no-one could find an authoritative reference for the answer. If it comes up in the exams again let your groundschool provider know and they will have a go at the CAA on your behalf. My feedback says the question was/is
Q. Studies of bird behaviour on the ground have shown that, with an aircraft at approximately 135 kt taking off, the birds will fly away:
(a) 2 seconds beforehand.
(b) 10 seconds beforehand.
(c) When they hear the noise of the engines.
(d) At the start of the take-off run.
and, again lacking a reference, we went for (a) purely based on experience. I would be very interested if you have a reference for the original study the question refers to.