Hi Eldar,

I am running my script with 1e6 particles.

The lat_lon graph appears to be good to me but I am not confident in that assessment. Both the Lat and Long last locations taken were on the breeding ground. I tried attaching the image here but was unable to figure out how.

I think I may be running into trouble before this step though, After running make.claibration() it pops up with 16 warnings (For this particular file. some birds are higher and some are less.) I have looked at the warnings and I am not exactly sure what they mean and how I would go about correcting them. The warnings are as follows:

Warning messages:

1: In log(cur.slope$slope) : NaNs produced

2: In log(All.slopes$Slopes$Slope) : NaNs produced

3: In log(cur.slope$slope) : NaNs produced

4: In log(All.slopes$Slopes$Slope) : NaNs produced

5: In log(all.slopes$Slopes$Slope) : NaNs produced

6: In log(Slope) : NaNs produced

7: In log(Slope) : NaNs produced

8: In log(Slope) : NaNs produced

9: In log(Slope) : NaNs produced

10: In log(cur.slope$slope) : NaNs produced

11: In log(All.slopes$Slopes$Slope) : NaNs produced

12: In log(all.slopes$Slopes$Slope) : NaNs produced

13: In log(Slope) : NaNs produced

14: In log(Slope) : NaNs produced

15: In log(Slope) : NaNs produced

16: In log(Slope) : NaNs produced