Marin County Breeding Bird Atlas Nest Watch Form

MCBBA2 Nest Watch gives homeowners, landowners, and everyday birders a chance to report nests or nesting behavior to our project. This form is ideal for people who do not use eBird or iNaturalist. Please a use a separate sheet for each distinct observation. If you are submitting a report on new behavior of a bird already reported – or a new development at this bird’s nest, please let us know in the ‘Notes’ section. Please do not disturb the nest or approach it too closely. “Pretty sure” is good enough!

Observer Name*
First Last
Phone*
Email*
Address / Location of Observation*
Please select at least one of the following behaviors:
- A bird singing near the same spot for more than 7 days
- Two birds mating/copulating
- Bird(s) entering and leaving cavity/hole in a tree, house, or other structure
- A bird carrying twigs, lichen, or other material for a nest
- A recently-hatched bird (stubby wings, big yellow ‘lips’, begging for food)
- Adult feeding young
- A nest with chicks or eggs (but please don’t go check if you can’t see)
- Other behavior that suggests a nesting bird
If you selected "Other behavior" above, please describe:
Name or description of the species you saw:
Bigger / smaller than a robin?
Please attach a photo if available:
Drop files here or

Max. file size: 256 MB.

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