One of the very first points of which a critic will take note is the foot of a hawk. Long toes are a great merit; and if they are slender and well separated at the bases, it will be all the better. Nor is there anything mysterious or unnatural in this, for, the wider the area which the hawk's foot can cover, the better chance she obviously has of catching hold with one talon or the other of the quarry at which she strikes. Another notable characteristic of the best feet is that they fasten themselves naturally with a clinging grip to the object of which they take hold, adhering so closely to a glove or any soft surface that they seem almost to be glued or stuck to it, and can only with difficulty be removed. In fact, the feet of some hawks, when they have taken a firm hold, can only be got off by picking the talons or claws out one after another with the hand. The hawks which thus clutch are almost always good killers in the field. Many falconers attach some importance to the colour of a hawk's feet. Major Fisher declares that a nestling peregrine with yellow feet is of little worth, and that the best colour is lead-grey or greenish grey. Merlins in their early days often have very pale feet, but some of the best of them, when in high condition and fed daily on freshly-killed larks, will put on a bright yellow and even a somewhat orange hue. Bright colours are undoubtedly a sign of health, though they may not be of strength, speed, or courage. The power which a hawk has in her feet seems usually to be a sure indication of corresponding vigour in the rest of her body.