Fork-tailed Flycatcher
Tyrannus savana
The fork-tailed flycatcher is white below, gray above, and has a black cap. Males sometimes show a yellow crown stripe. Males also have an extremely long, forked tail, of even greater length than that of the related scissor-tailed flycatcher. Females have a somewhat shorter tail, and it is significantly shorter in juveniles. Males are 37–41 cm (15–16 in) in length; females, 28–30 cm (11–12 in), including tail. They weigh only 28–32 g (0.99–1.13 oz), much less than closely related kingbirds, which are half the total length of this species. Voice: Fork-tailed flycatchers produce both vocal and nonvocal sounds. In general, they have a dry, buzzy call, and a weak "tic-note" while in flight. Their wings have been observed to make a distinct whistling note while flying overhead. Research has uncovered differences in the pitch of whistling noises by different subspecies of T. savana.
ID text from Wikipedia, CC BY-SA 4.0

Loggerhead Kingbird
Tyrannus caudifasciatus
The loggerhead kingbird has a length of 24 to 26 cm (9.4 to 10.2 in), and is a large species of kingbird with a heavy bill. It is two-toned dark upper parts and lighter underparts. The head, apart from the throat, is black with an orange patch on the topmost part of the crown which is rarely seen. The upperparts are gray and the underparts are lighter in color. In most populations there is a grayish band at the end of the tail, although this can be white.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Fork-tailed Flycatcher and Loggerhead Kingbird.