Marsh Wren male with nesting material, Bear River Migratory Bird Refuge, Box Elder County, UtahMarsh Wren male with nesting material – Nikon D500, f7.1, 1/2500, ISO 400, Nikkor 500mm VR with 1.4x TC, natural light

I was looking through photos that I took nearly two years ago today and realized it is already nesting season for Marsh Wrens in northern Utah. On March 27, 2018 I spent the morning at Bear River Migratory Bird Refuge and although I took photos of several species of birds there that day I spent the most time photographing male Marsh Wrens singing and gathering nesting materials on their breeding territories.

Only male Marsh Wrens sing and build nests so I have based my gender ID for these wrens from my observations.

Marsh Wren male on his territory, Bear River Migratory Bird Refuge, Box Elder County, UtahMarsh Wren male on his territory – Nikon D500, f7.1, 1/1600, ISO 400, +0.7 EV, Nikkor 500mm VR with 1.4x TC, natural light

By using a vehicle as a mobile blind I was able to photograph the wrens as they sang, searched for nesting materials, defended their breeding territories and built their nests from a distance.

The male Marsh Wrens were very keen on chasing away any other males that came into their territory. I did observe a wren come into this male’s territory that he didn’t chase off, I think it was safe to presume that wren was a female but she didn’t come out into the open enough for me to get photos of her.

Male Marsh Wren during nesting season, Bear River Migratory Bird Refuge, Box Elder County, UtahMale Marsh Wren during nesting season – Nikon D500, f7.1, 1/2000, ISO 400, Nikkor 500mm VR with 1.4x TC, natural light

Over the years I have found that Marsh Wrens are easier to photograph during the nesting season because the males spend more time high up on cattails, rushes, and phrags singing to attract mates. Male Marsh Wrens are tiny but fierce and will defend their breeding territory aggressively.  They sing during the day and sometimes during the night. I’ve never heard them singing at night but I’d love to hear that.

This morning there is a skiff of fresh snow on the ground again with clouds all over northern Utah or I’d hop in my Jeep and head to the refuge. I am anxious to get back there and enjoy seeing and hearing these tiny marsh residents as they begin their nesting season while I am still able to.

Currently the auto tour route at Bear River Migratory Bird Refuge is still open during this Covid-19 pandemic crisis although the visitor center is closed. I hope that everyone who visits the refuge is washing their hands often, maintaining social distancing, and stays safe.

Life is good.

Mia

Note: These photos were taken from inside a vehicle being used as a mobile blind with sufficient distance between the birds and the vehicle so the wrens went about their business naturally. The comfort, safety and well being of the birds is always more important to me than the photos, especially during the nesting season.

Ethics on photographing nesting birds:

  • Do not approach too closely;
  • If the birds show any sign of distress, back away;
  • Don’t trim leaves, twigs or branches to get a clearer shot, you may inadvertently attract predators or cause the eggs/chicks to over heat;
  • Follow local, state and federal guidelines concerning nesting birds;
  • Don’t harass the birds to get an action shot;
  • Don’t stay a long time with nesting birds or chicks, that disrupts their normal behavior;
  • Always put the safety and comfort of the birds first.

For more information on the ethics of photographing nesting birds or chicks check out the Principles of Birding Ethics published by the American Birding Association.