I was at Huntington Beach Central Park today and I heard this peeping sound and when I saw the bird it looks like an Orange-crowned but I thought they trilled, not peeped. I checked the macaulaylibrary catalog on all about birds and there isn’t a call similar, I managed to get a couple of snaps and it is an orange-crowned, I heard it in 2 different occasions and different places within the park and both times came from orange-crowneds
also here’s the link to the macaulaylibrary
https://macaulaylibrary.org/asset/166479511#_ga=2.25622653.111804194.1561958476-1771621170.1554588670
Ocwa peep call.m4a