Blue-winged Kookaburra
Dacelo leachii
The adult blue-winged kookaburra measures around 38 to 42 cm (15 to 17 in) in length and weighs 260 to 330 g. Compared to the related laughing kookaburra, it is smaller, lacks a dark mask, has more blue in the wing, and has striking white eyes. It has a heavier bill than its larger relative. The head and underparts are cream-coloured with brownish streaks. It is sexually dimorphic, with a blue tail in the male, and a rufous tail with blackish bars in the female.
ID text from Wikipedia, CC BY-SA 4.0
Laughing Kookaburra
Dacelo novaeguineae
The laughing kookaburra is the largest species of kingfisher, outsizing even the giant kingfisher in body mass. It is a stout, stocky bird 41–47 cm (16–19 in) in length, with a large head, prominent brown eyes, and a long and robust bill. The sexes are very similar, although the female is usually larger and has less blue to the rump than the male. The male weighs 196–450 g (6.9–15.9 oz), mean 307 g (10.8 oz) and the female 190–465 g (6.7–16.4 oz), mean 352 g (12.4 oz). Voice: The name "laughing kookaburra" refers to the bird's "laugh", which it uses to establish territory among family groups. It can be heard at any time of day, but most frequently at dawn and dusk. This species possesses a tracheo-bronchial syrinx, which creates two sources of vibrations so it can produce two frequencies at the same time with multiple harmonics.
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: Blue-winged Kookaburra and Laughing Kookaburra.