Laughing Falcon
Herpetotheres cachinnans
The laughing falcon is 45 to 56 cm (18 to 22 in) long and has a wingspan of 79 to 94 cm (31 to 37 in). Females are slightly larger than males and significantly heavier. Males of the nominate subspecies weigh 408 to 686 g (0.9 to 1.5 lb) and females 590 to 800 g (1.3 to 1.8 lb). Subspecies H. c. fulvescens is slightly smaller than the nominate. The sexes of the laughing falcon have the same plumage. Adults of the nominate subspecies have creamy white underparts that vary somewhat among individuals, seasonally, and with feather wear. Voice: The laughing falcon is highly vocal. Its "advertisement call" is a "long rhythmic far-carrying series of loud hollow notes...often after bubbly laugh at outset, series of wah notes that gradually increase in pitch and loudness...into series of wah'-co phrases." This vocalization has also been described as a song and rendered as "a fairly steady wah wah or w-hah w-hah or ha...ha...ha".
ID text from Wikipedia, CC BY-SA 4.0
Nankeen Kestrel
Falco cenchroides
The nankeen kestrel is a small, slim falcon 28 to 35 cm (11 to 14 in) long with a wingspan of 66 to 78 cm (26 to 31 in). The male weighs 121 to 195 g (4.3 to 6.9 oz) while the female weighs 115 to 273 g (4.1 to 9.6 oz). It has pale rufous upper-parts with contrasting black flight-feathers and is finely streaked white below, with a black subterminal band. The cere, eye-ring, and legs are yellow. The male has a pale grey crown and tail with a darker grey tear-mark, while the female and juvenile have a pale rufous crown and finely barred rufous tail.
ID text from Wikipedia, CC BY-SA 4.0
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