and that's what united's teresa claiborne will miss most. >> they just stop and stare.y call it the queen of the skies. >> right. >> do you think that's fitting? >> between you and me i used to call it the king. >>> los angeles the only major city in the world that has mountain lions roaming its borders. most have been collared and tagged. a new one has conservationists concerned. carter evans has the story. >> i have heard of many reports of mountain lions through the years living up here. >> just didn't have the proof? >> exactly. >> reporter: high in the hollywood hills, conservationist, tony tucci was curious about the wildlife thriving in the urban jungle. he left the camera here in june and captured usual, squirrels and deer. earlier this week when he downloaded the most recent images. >> click, boom. mountain lion. my mind was blown. >> several mountain lions or pumas known to inhabit the mountains. most tagged and documented. the big cat has no tracking collar. nothing is known about its where abuts except that it likely had to cross one of the busiest freeways