"Will & Grace" The Birds and the Bees (TV Episode 2005)
The Hot Gay Nerd Karen is concerned that she has a peeping tom looking into her apartment with a pair of binoculars. She and Jack go to the park and find that the man is actually a bird-watcher admiring the male species of the rare Golden-cheeked warbler (Dendroica chrysoparia). Jack immediately deduces that the man, Aaron, is a "hot gay nerd", the "rarest of all gay subspecies" and must be. And from to plus a brief stint from to we had Jack. Just Jack. 
List of Jack's romantic partners
The Birds and the Bees: Directed by James Burrows. With Eric McCormack, Debra Messing, Megan Mullally, Sean Hayes. Grace meets Nick again when he picks up his phone which he forgot at her office. After passionately kissing him, Grace is scared she's moving too fast in their relationship, so she convinces Will to go with her on a date with Nick to watch over her and her actions. This is a list of all characters who appeared or were mentioned to have had a romantic relationship with Jack McFarland. Jack has been known for his various flings throughout the show with most of them being mentioned only, and with a few exceptions, Jack never seems to take them seriously or to settle down with anyone for very long.
The Birds and the Bees
Karen takes the hot gay nerd's mind off of his dead bird with a different kind of bird. The Birds and the Bees is the 17th episode of the seventh season , and the rd overall. Jack helps Karen with her peeping tom.
‘Just Jack’
Notes According to Jack, Aaron is among the rarest of all gay subspecies: The Hot Gay Nerd (or "HGN"). Aaron's bird, the Golden-cheeked Warbler (Dendroica chrysoparia), is an endangered species found in Texas, Mexico and Central America. . Will & Grace
Very glad this popped up on YouTube today. Fun to see Luke Perry's appearance on an old episode of Will & Grace from He played what Sean Hayes' Jack described as a "hot gay nerd." Perry, who sadly died this week at just 52, had finished three seasons starring in the TV drama Jeremiah. . Spotted
It turns out that he wasn't looking at Karen but at birds and that he is a "Hot Gay Nerd". Jack is very interested in this very rare "species" of gay men. . 
Will & Grace Episode 7.17 The Birds and the Bees
Just Jack. As in Jack McFarland from NBC’s hit sitcom Will & Grace. He was one of two openly gay principal characters on the show that President Biden once said “probably did more to educate the American public” on LGBT issues “than almost anything anybody has ever done so far.”. .
TV Flashback
It’s the episode with Luke Perry as “the rarest of all gay sub species - the hot gay nerd.” My favorite part is Jack acting like a bird to entice Luke Perry’s Character. Also favorite lines below: Karen trying to warm Jack up when man-watching the bird-watcher - Karen: Here, I made you some soup Jack: (sips) Karen, this is gin?!. .