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Irruptive Bird Survey Instructions

There are three parts to this survey.

1. Who are you and how long were you birding?

2. Which species, and how many of each did you see?
    If you observed them feeding, what they were feeding on?

3. In what kind of habitat did you see the birds?
    What was the wild food abundance in the area you saw the birds?

Who are you and how long were you birding?
To make the most of your data in our analyses, we need to know the effort you put in to locating the birds you are reporting. Please tell us your starting time and duration, and whether you went for a walk or birded from a fixed point (such as at a bird feeder). Please provide us with your e-mail address just in case we have a question about your submission.

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Which species, and how many of each did you see?
If you observed them feeding, what they were feeding on?

From the list provided, tell us how many of each species you observed during the time you indicated in the previous section. We would also like to know what the birds were eating. If you observed them feeding, please use the pull down menu to select the food category that best describes what you observed.

As we find out more about this season's bird movements we will be adding more species to the Irruptive Bird Survey list. When additions have been made, we will post notices so that you can find out about them. Currently, we have included:

Varied Thrush

Clark's Nutcracker

Bohemian Waxwing

Cedar Waxwing

Red-breasted Nuthatch

Pine Grosbeak

Purple Finch

American Goldfinch

Pine Siskin

Common Redpoll

Hoary Redpoll

Red Crossbill

White-winged Crossbill

Evening Grosbeak

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In what kind of habitat did you see the birds?
What was the wild food abundance in the area you saw the birds?

We would like to know why birds irrupt into the areas where you are reporting them. For each birding site that you entered, please fill out the habitat type and wild food abundance section. Do this only once for each site.

Habitat. Check each habitat category that describes your site. You may select more than one habitat category to best describe your site.

Assessing wild food abundance. We would like to find out what types and how much food is available at your site. Please follow the procedure outlined below to determine the availability of each food type.

Conifer Cones
Determine the most common types of conifers at your site.

Use your binoculars to look for conifer cones at the tops of trees, then use these guidelines to categorize what you see:

  • High: Many trees have cones readily seen.
  • Moderate: A few trees have cones easily seen.
  • Low: Very few, if any cones observed.

    Important! Do not use number of cones found on the ground as an indicator of abundance.

    Hardwood Tree Seeds
    Look for alders, birch, beech, oak, and maple at your location and determine what type is most common.

    Use your binoculars to look for seeds at the tops of trees, then use these guidelines to categorize what you see:

  • High: Many trees have seeds readily seen.
  • Moderate: A few trees have seeds easily seen.
  • Low: Very few, if any seeds observed.

    Weed Seeds
    If you have fields at your site, look at the weedy plants and determine if there are many small seeds on the plants. In the East, a good example would be marigold.

    Follow these guidelines to assess the abundance of the weed seeds in your region:

  • High: Many weeds have seeds readily seen.
  • Moderate: A few weeds have seeds easily seen.
  • Low: Very few, if any seeds observed.

    Fruits and berries
    Look for trees and shrubbery at your site that produce fruits or berries.

    Mountain Ash, Crabapple, and many ornamental plantings produce fruits and berries.

    Follow these guidelines to assess the abundance of fruits and berries in your region:

  • Abundant: Many trees and shrubbery have fruits and berries easily seen.
  • Moderate: A few trees and shrubbery have fruits and berries easily seen.
  • Low: Very few, if any trees and shrubs have fruits and berries easily observed.
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    What is an "Irruption?" ID Guide Count Instructions Fill Out a Checklist IBS Results BirdSource
    What is an \'Irruption?\' Irruptive Bird Species Identification Guide Count Instructions Irruptive Bird Survey Checklist Irruptive Bird Survey Results