Red-shouldered Hawk, Blue Jay, or both? I couldn't see them. These two clips were right before this recording.
https://www.inaturalist.org/observations/125098258
https://www.inaturalist.org/observations/125097697
The camera clicking you hear is me taking photos of this crow: https://www.inaturalist.org/observations/119249822
Along Rail 66 Country Trail at edge of young mixed hardwood forest. Male catbird singing with improvisation and mimicry. Listen to time 0.13 for an apparent robin call mimic.