4 4 ▁where ▁he ▁quickly ▁became ▁a ▁prisoner ▁of ▁war ▁in ▁the ▁Soviet ▁Union ▁from ▁ 1 9 4 4 ▁to ▁ 1 9 4 8 . ▁In ▁capt ivity ▁in ▁Soviet ▁Armen ia , ▁he ▁continued ▁to ▁work ▁as ▁a ▁medic ▁and ▁" bec ame ▁toler ably ▁fl uent ▁in ▁Russian ▁and ▁got ▁quite ▁friendly ▁with ▁some ▁Rus si ans , ▁mostly ▁do ctors ." ▁When ▁he ▁was ▁rep atri ated , ▁he ▁was ▁allowed ▁to ▁keep ▁the ▁manuscript ▁of ▁a ▁book ▁he ▁had ▁been ▁writing , ▁and ▁his ▁pet ▁star ling . ▁He ▁arrived ▁back ▁in ▁Al ten berg ▁( his ▁family ▁home , ▁near ▁Vienna ) ▁both ▁" with ▁manuscript ▁and ▁bird ▁int act ." ▁The ▁manuscript ▁became ▁his ▁ 1 9 7 3 ▁book ▁Be hind ▁the ▁Mir ror . ▁ ▁The ▁Max ▁Plan ck ▁Society ▁established ▁the ▁Lor enz ▁Institute ▁for ▁Be havior al ▁Phys i ology ▁in ▁Bul dern , ▁Germany , ▁in ▁ 1 9 5 0 . ▁In ▁his ▁mem oir s ▁Lor enz ▁described ▁the ▁chron ology ▁of ▁his ▁war ▁years ▁differently ▁from ▁what ▁histor ians ▁have ▁been ▁able ▁to ▁document ▁after ▁his ▁death . ▁He ▁himself ▁claimed ▁that ▁he ▁was ▁captured ▁in ▁ 1 9 4 2 , ▁where ▁in ▁reality ▁he ▁was ▁only ▁sent ▁to ▁the ▁front ▁and ▁captured ▁in ▁ 1 9 4 4 , ▁leaving ▁out ▁entirely ▁his ▁invol vement ▁with ▁the ▁Poz na ń ▁project . ▁ ▁In ▁ 1 9 5 8 , ▁Lor enz ▁transferred ▁to ▁the