Mackinnon's Shrike
Lanius mackinnoni
Mackinnon's shrike grows to a length of about 20 cm (8 in). The adult male has a greyish-black head and mantle, a white supercilium, white scapulars and black wings. The tail is black with white margins and the underparts are white, sometimes tinged with buff. The female is similar except for having rufous patches on the flanks. The juvenile is greyish-brown and heavily barred.
ID text from Wikipedia, CC BY-SA 4.0
Tiger Shrike
Lanius tigrinus
It is a fairly small, stocky shrike, 17–19 cm long. Males weigh 27-29 grams and have a wing length of 77.8-83.9 mm, a tail length of 66.9-75.0 mm and a bill length of 14.1-15.9 mm. Females weigh 29-37 grams and have a wing length of 79.5-85.3 mm, a tail length of 66.3-79.1 mm and a bill length of 14.8-16.7 mm. The thick bill is blue-black with a black tip and the legs are grey-black. The adult male's back, rump and shoulders are reddish-brown with blackish bars creating a tiger-like pattern. It has a black forehead and mask and grey crown and nape. Voice: Its song is a musical warbling. It has a variety of harsh calls including a loud, repeated territorial call, a chattering alarm call and a softer trilling call. It often calls from within cover but territorial males call from a prominent perch.
ID text from Wikipedia, CC BY-SA 4.0
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