3 Easy Steps.

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Step 1
Pick the month when the first egg was laid in any particular nest.

Step 2
Pick the day of the month when the first egg was laid in any particular nest.

Step 3
Pick the number of total eggs for that day and month for any particular clutch.

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The first egg in the clutch was laid on Day 1 of July.

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Pick the Total Number of Eggs that were laid in the clutch to find hatch and fledge dates.

1 egg

2 eggs

3 eggs

4 eggs

5 eggs

6 eggs

7 eggs

1 egg Hatching begins: 7/16 Earliest Fledging: 8/11 Nestling age: 26 days Latest Fledging: 8/20 Nestling age: 35 days [back to top]  [start over]  [PMC home]

2 eggs Hatching begins: 7/17 Earliest Fledging: 8/12 Nestling age: 26 days Latest Fledging: 8/21 Nestling age: 35 days [back to top]  [start over]  [PMC home]

3 eggs Hatching begins: 7/18 Earliest Fledging: 8/13 Nestling age: 26 days Latest Fledging: 8/22 Nestling age: 35 days [back to top]  [start over]  [PMC home]

4 eggs Hatching begins: 7/19 Earliest Fledging: 8/14 Nestling age: 26 days Latest Fledging: 8/23 Nestling age: 35 days [back to top]  [start over]  [PMC home]

5 eggs Hatching begins: 7/20 Earliest Fledging: 8/15 Nestling age: 26 days Latest Fledging: 8/24 Nestling age: 35 days [back to top]  [start over]  [PMC home]

6 eggs Hatching begins: 7/21 Earliest Fledging: 8/16 Nestling age: 26 days Latest Fledging: 8/25 Nestling age: 35 days [back to top]  [start over]  [PMC home]

7 eggs Hatching begins: 7/22 Earliest Fledging: 8/17 Nestling age: 26 days Latest Fledging: 8/26 Nestling age: 35 days [back to top]  [start over]  [PMC home]

Egg'zact Facts

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You must do nest checks every 5 days.

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It takes at least two consecutive nest checks to determine when the "first" and "last" egg in a clutch is laid.

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Martins lay a total of 1-7 eggs.

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One egg is laid at sunrise everyday during the "laying cycle".

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Parents will hide the eggs under nest material, probe around gently to find them all.

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Hatching can take up to 3 days.

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Hatching begins approximately 15 days after the final egg is laid.

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Note:
Nestlings cannot fly until they are at least 26 days old and usually fledge on the average of 30 days in a period between 26 to 35 days.