Spring Migration Period 



Geese Present . One of the census flights made during the spring 

 migration period of 1975 produced the highest number of geese counted during 

 the study (figure 4). Seventy percent of the observations were recorded 

 between Bighorn and Miles City (table 3). Similar numbers might have been 

 observed in the spring of 1976 had the aerial census been conducted earlier 

 in March, judging by ground observations of large field-feeding flocks of 

 geese between Bighorn and Miles City in early March. 



TABLE 3. Numbers of Canada geese observed during aerial censuses in the 



Spring Migration Period 



Section 



Number 

 of Geese 3 



Geese/km 



Billings to Huntley 

 Huntley to Worden 

 Worden to Pompeys Pillar 

 Pompeys Pillar to Custer 

 Custer to Bighorn 

 Bighorn to Hysham 

 Hysham to Sanders 

 Sanders to Forsyth 

 Forsyth to Rosebud 

 Rosebud to Hathaway 

 Hathaway to Miles City 

 Miles City to Kinsey 

 Kinsey to Zero 

 Zero to Powder River 

 Powder River to Terry 

 Terry to Fallon 

 Fallon to Glendive 

 Glendive to Intake 

 Intake to Savage 

 Savage to Sidney 

 Sidney to Fairview 



CONVERSIONS: 1 goose/km = 1.61 geese/mi 



NOTE: Two flights conducted in March during the period of greatest 

 migrant influx into the study area. 



a All flights. 



21 



