under the nest (?) tree, hoping they would prove an attraction. The lizard-carrying behavior now appears definitely to be a part of the mating behavior. Twig carrying begins. At 11:00 A.M. one of the Rhodes was seen pulling a twig out of a bank and running off with it in the general direction of station 1 (the acacia first referred to) about 25 feet away. At 11:45 both were picking up twigs near there--one inside the fence, the other outside. Neither has apparently seen me as yet, though my nearest approach to them has been about 50 feet. It is not possible to determine as yet at what point their activities are centering, if indeed, they have definitely determined upon a final location. A new call. A few minutes later one of them called using a series of short, staccato syllables sounding like kawk, kawk......kawk, perhaps 8 or so in succession, all of about the same pitch, be- ginning with a crescendo followed by a diminuendo, thus: <> This appears to be a contact call, and was heard here for the first time. It appears to be the one referred to by Dawson as kwoke.. etc. I am uncertain of the vowel. Nova. At 12 I went to the thrasher nest when both parents were away. Nova came at once, much annoyed and scrapping and pecking pettish- ly at the leaves and twigs within 3 or 4 feet of me. B came with- in a few seconds and promptly and practically settled upon the nest, while Nova continued to move about almost within reach and still excited. Her scrip seems more of a whip than B's. As soon as I left she subsided. She seems absolutely unconvinced that there is anything to be gained by a less hostile attitude toward me and B's obvious material gain from his contacts with me are lost upon her entirely. R.Rs. At 2 P.M. the road-runners had gone off to the west and I took the opportunity to look for the nest. There was nothing in Sta.l;