Abstract Marked week-to-week fluctuations in forage consumption by chickens on range have been reported in previous studies (Wood, 1956; and Wood et al., 1958). In attempting to explain these fluctuations such variables as kind of pastures, stage of forage growth and age, sex, breed, and individuality of the ranging bird have all been proffered as contributing factors. It was shown that a considerable quantity of forage may be consumed by some birds on occasion. For example (Wood et al., 1958), 60 grams of fresh bluegrass was recovered from the crop of a 23-week-old White Rock male and 53 grams of ladino clover from a 24-week-old White Rock pullet. On a dry matter basis these amounts represented 33.4% and 35.9% respectively of the total feed intake. Quantities as large as this are, of course, the exception but do indicate that forage may be consumed in substantial amounts. It was discerned further that…