We try not to have more than one extern at a time ... but then again - some time there may be a little overlap - and that can actually make it interesting talking w/ students from other Vet Schools.  There is no formal application - we just would like to see a resume to get an idea of the students level of experience. We try to get the Externs as involved as possible.  They Shadow the DVM's where ever they like - i.e. during exams, help w/ treatments, help w/ Surgery - usually prepping & monitoring anesthesia ... we also board a lot of exotics - so there is an opportunity to help w/ those - which further exposes them to the care of the various bird, small mammal & reptile species we care for here at Animal House.  We try to post = necropsy all that pass away to learn - and the externs can help w/ that or do them w/ our help as / if needed ... so we try to give each as much experience as possible depending on their & our level of comfort and depending on the specific animal/case. We try to round every 2 weeks or so - plus there is a local exotic groups that meet every 2-3 months and the Zoo group that meets every 4 months - so the externs are welcome to those meetings as well. Unfortunately we are not able to offer any financial support nor any help w/ housing. Hope that this helps - all the best.