About difficulties in photographing this bird I wrote in the introductory text to my expedition to see the procellariiformes. It is really of a dainty physique, especially it appears to be like that against the endless ocean waters. Its weight  is about 25 grams so it is lighter than a sparrow (about 30 grams). The wingspan is about 35 cm, which  is a lot considering the small weight of the bird. Storm petrels, even when rearing offspring, spend all days on the open ocean feeding and return to nests/burrows at night to feed their young. It happened once that storm petrels were very close to our boat, literally a few meters away, drifting on water. Unfortunately, it was too dark to take photos, which is a pity, because these pictures would  certainly be the most interesting ones.About difficulties in photographing this bird I wrote in the introductory text to my expedition to see the procellariiformes. It is really of a dainty physique, especially it appears to be like that against the endless ocean waters. Its weight  is about 25 grams so it is lighter than a sparrow (about 30 grams). The wingspan is about 35 cm, which  is a lot considering the small weight of the bird. Storm petrels, even when rearing offspring, spend all days on the open ocean feeding and return to nests/burrows at night to feed their young. It happened once that storm petrels were very close to our boat, literally a few meters away, drifting on water. Unfortunately, it was too dark to take photos, which is a pity, because these pictures would  certainly be the most interesting ones.