Each year has its own page. The lower section of each page has a list of Reports*. The entire reports (by month) can be downloaded in .pdf format!
Of particular interest to us, of course, in each year of reports, are the incidents regarding Animals. There is a short summery under each month, which tells you if there were any animals related incidents during that month.
Air Travel Consumer Report for 1998
http://airconsumer.ost.dot.gov/reports/atcr98.htmAir Travel Consumer Report for 1999
http://airconsumer.ost.dot.gov/reports/atcr99.htmAir Travel Consumer Report for 2001
http://airconsumer.ost.dot.gov/reports/atcr01.htmAir Travel Consumer Report for 2002
http://airconsumer.ost.dot.gov/reports/atcr02.htmAir Travel Consumer Report for 2003
http://airconsumer.ost.dot.gov/reports/atcr03.htmAir Travel Consumer Reports for 2004
http://airconsumer.ost.dot.gov/reports/atcr04.htmAir Travel Consumer Reports for 2005
http://airconsumer.ost.dot.gov/reports/atcr05.htmAir Travel Consumer Reports for 2006
http://airconsumer.ost.dot.gov/reports/atcr06.htmAir Travel Consumer Reports for 2007
http://airconsumer.ost.dot.gov/reports/atcr07.htmAir Travel Consumer Reports for 2008
http://airconsumer.ost.dot.gov/reports/atcr08.htm