These photos can be explained away as simple camera lens flare anomalies.
It should be noted:
1. many of these photos were taken along the North Saskatchewan River and Lake Abraham, in Alberta
2. the sun changes position from photo to photo but the orb appears in different places in the photo as well
3. you can distinctively tell the difference between sun reflecting off snow and the orb anomaly
4. In over 15,000 photos I have taken over the years these orbs appear in less than 25 photos.
5, There are 2 photos missing from this album.