ML510673051
יוצר
תאריך
מיקום
- גיל
- לא מוגדר
- זוויג
- לא מוגדר
- התנהגויות
- תעופה
פרטי השורה
After spending a week trying to identify the Chaetura swift species hawking over the forest as viewed from the ‘Campo do Mariano’ this evening the birds finally came close enough to allow for photos, even doing so on multiple occasions. The first notable occasion was when three flew north together at close range but very quickly. Some photos were taken on this occasion, and on the next occurrence when one flew overhead from behind, heading east into the forest. On both occasions the photos clearly showed the presence of a pale white/pale grey tail band followed by a black tail. This distinctive stripe seems to rule out Chaetura sickii which would show a greyish rump extending into the tail, rather than a distinctive contrasting band. The only downside was that the birds were not heard to call in strong winds.
מידע טכני
- מודל
- Canon EOS R5
- עדשה
- RF100-500mm F4.5-7.1 L IS USM + EXTENDER RF1.4x
- ISO
- 640
- אורך מוקד
- 599 mm
- פלאש
- Flash did not fire
- צמצם
- f/9.0
- מהירות תריס
- 1/1600 sec
- מימדים
- 1941 pixels x 1294 pixels
- גודל קובץ מקורי
- 123.25 KB