Figure legends
Figure 1. Illustration showing a cluster of rictal bristles of the Alder flycatcher Empidinax traullii. Seven millimeters in length; reproduced from Lederer (1972).
Figure 2. Examples of noxious prey found on Iberian grey shrike larders in southern France.
Figure 3. Specimens of the Iberian grey shrike (National Natural History Museum of Paris) and detail of the head of a naturalized bird (Natural History Museum of Nîmes). © Frédéric Labouyrie.
Figure 4. Range of measured bristle and beak lengths from museum specimens of the Iberian grey shrike, showing the length of the longest bristle and longest beak, the mean, minimum and maximum of the data.
Figure 5. Iberian grey shrike head seen from the front. © Gilbert Lacassin.
Figure 6. Iberian grey shrike head seen from the side showing details of the different types of protective feathers.
Figure 7. Rapid head rotation of an Iberian grey shrike after regurgitating a pellet.