Rebetzin
“The concept of keli rishon, sheini, shlishi is a law in cooking: bishul, to acheive COOKING … To transfer flavours of meat/milk or issur you don’t need to cook the ingredients together”
Not quite
see http://hb.borisute.com/tursa.aspx?a=yd_x4307
Although we are machmir lekatchila, it is wrong to say that kli sheini vs kli rishon isnt relevant to transfer of taam
Regarding the Chasam sofer, you are right I do recall it explained that it is only when the bird subsequently dies, but a. I’m not sure why that would be and b. From the last line isnt mashma that way ” דגם בחיותו אוסר כנ”ל ”
I had jotted down mareh mekomos which I will hunt down over shabbos bl”n