Page 559 - Hand rearing birds second

(a) (b)
4500 1400
Writhed hornbill (n =1)
4000
1200 Wrinkled hornbill (n =8)
3500 Black hornbill (n=2)
1000 Sulwesi hornbill (n =10)
3000
Weight (g) 2500 Weight (g) 800
2000
600
1500 Great hornbill (n=1)
1000 Southern ground hornbill (n = 14) 400
Northern ground hornbill (n = 33)
500 200
0 0
1 6 11 16 21 26 31 36 41 46 51 56 61 66 71 76 81 86 91 96 101 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75
Age in days Age in days
(c) (d)
90
200
180 80
160 70
140 60
Weight (g) 100 Weight (g) 50
120
40
80
60 Dollarbird (n= 20) 30 Minimum
Purple roller (n=2) 20
40 Average
20 Blue-bellied roller (n =8) 10 Maximum
0 0
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 0 369 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60
Age in days Age in days
Figures 36.5 (a) Average chick growth curve for three species of hornbills; (b) average chick growth curve for four species of hornbills; (c) roller chick growth
curve; (d) Guam Kingfisher chick growth curve.