This study was carried out to investigate the behavior and physiological conditions of hens housed in cages with or without perches. The physiological parameters investigated were heart rate (HR), body temperature (BT) and locomotor activity (LA) using a radiotelemetry system. Six White Leghorn hens (3*-weeks-old) were used after transmitters implantation. Following the preconditioning period for at least +* days, the behavioral and physiological data were recorded for , consecutive days, which were the data in the control cages without perches (C). After that, the same hens were exposed to the following types of cages : conventional cages with perches available all day (P,.), followed by conventional cages with perches from +3.** to *2.** hours (P+-), and finally housed in conventional cages with perches from +3.** to *..** hours (P3). The interval between each trial was a +* days to habituate the hens with their new environment. Immediately following this, the behavioral and physiological data were recorded for , consecutive days for each trial. The only significant behavioral di#erence was found in the time consumed in resting, which increased significantly in P,. cages than in C and P 3 cages (P῍*.*/). Our physiological data during the light period indicate that the hens in P,., P+-and P3 cages had a significantly higher heart rate than in C cages (P῍*.*+). On the other hand, hens in P,. cages had a significantly lower BT than in C, P+-, and P3 cages (P῍*.*+), however, hens in P,. cages had a significantly higher LA than in C, P+-and P3 cages (P῍*.*+). Moreover, during the dark period, hens in P,. cages had a significantly lower HR, BT and LA than all the other treatment (P῍*.*+). These results suggest that the use of cages with perches might be important for the hens' welfare than those without perches.