90 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I43 



Table 4. — Muscles of the loiver extremities (percent of body weight) 



Species Total Thigh Leg 



Tinamus major 13-14 7-36 5.78 



Pelecanus occidentalis 5.71 3.37 2.42 



Phalacrocorax olivaceus 11.30 3.95 5.93 



Anhinga anhinga 8.72 4.36 4.36 



Ardea herodias 12.00 5.79 6.28 



Heterocnus mexicanus 12.20 6.31 5.88 



Ixobrychus exilis 12.21 6.13 6.08 



Mycteria americana 10.30 4.70 5.63 



Eudocimus albus 8.48 4.65 2.72 



Aythya affinis 5.20 2.78 2.42 



Coragyps atratus 14.40 7.75 6.62 



Chondrohierax uncinatus 7.50 4.36 3.14 



Caracara cherhvay 13.60 6.68 6.90 



Ortalis garrula 20.10 10.60 9.40 



Coturnix coturnix japonica 10.78 6.38 4.40 



Colinus virginianus 13.20 7.43 5.77 



Odontophorus guttatus 14.10 8.22 5.90 



Callus g alius (White Leghorn) 15.38 7.02 5.36 



Laterallus albigularis 18.15 10.30 7.82 



Squatarola squatarola 5.35 2.81 2.61 



Ereunetes mauri 4.76 2.79 1.98 



Sterna hirundo 2.63 1.52 1.1 1 



Thalasseus sandvicensis 2.28 1.36 0.91 



Rynchops nigra 2.46 1.41 1.04 



Columba livia 6.38 3.39 2.55 



Columba speciosa 4.78 2.73 1.97 



Crotophaga sulcirostris 12.35 7-44 4-92 



Otus choliba 8.83 3.34 5.49 



Megaceryle torquata 2.95 2.10 0.86 



Chloroceryle aenea 2.50 1.59 0.91 



Colaptes auratus 7.25 4.60 2.66 



Melanerpes erythrocephalus 6.04 3.1 1 2.93 



Synallaxis albescens 10.20 5.01 5.15 



Muscivora tyr annus 2.73 1.47 1.26 



Iridoprocne bicolor 2.68 



Aphelocoma coerulescens 14-50 6.87 7.57 



Mimus polyglottos 10.80 5.29 5.50 



Mniotilta varia 6.58 



Parula americana 6.95 2.97 3.48 



Agelaius phoeniceus 8.86 4.00 4.86 



Richmondena cardinalis 7.14 3.67 3.47 



Spisella passerina 6.14 3.15 2.99 



