Some students are observing the behavior of a male bird in the schoolyard. which of the following observed behaviors might behaviors might increase the probability of reproductive success?

The behavior that will increase the probability of reproductive success is

( A ) Made a chirping sound

When a male is calling for a female bird it makes a special sound ( chirping sound ) to attract its mate within the vicinity and that way the probability of a reproductive success will increase.

while other kinds of behaviors as listed in question cannot attract a mating partner and will lead to the decrease in the probability of reproductive success for the male bird.

Hence we can conclude that the behavior that will increase the probability of reproductive success is : ( A ) Made a chirping sound.

Learn more about male bird : link

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oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%